Chicago Electrical Exam

1. Appliance which is actually moved, or can easily be moved from one place to another in normal use means a portable appliance?

True

False

A portable appliance is one that can be easily moved from one place to another in normal use. This means that the appliance is designed to be lightweight and compact, making it convenient to transport. Examples of portable appliances include laptops, handheld vacuum cleaners, and portable heaters. Therefore, the given statement that an appliance which is actually moved or can easily be moved from one place to another in normal use is a portable appliance is true.

Explanation

A portable appliance is one that can be easily moved from one place to another in normal use. This means that the appliance is designed to be lightweight and compact, making it convenient to transport. Examples of portable appliances include laptops, handheld vacuum cleaners, and portable heaters. Therefore, the given statement that an appliance which is actually moved or can easily be moved from one place to another in normal use is a portable appliance is true.

2. Unless otherwise specified, conductors normally used to carry current shall be

Copper

Aluminum

Copper clad

Silver plated.

Copper is the most commonly used conductor for carrying current. It has low resistance, high electrical conductivity, and good thermal conductivity, making it an ideal choice for conducting electricity. Copper is also highly durable and resistant to corrosion, ensuring a long lifespan for the conductor. Additionally, copper is readily available and relatively affordable compared to other conductive materials. Therefore, copper is the preferred choice for conducting current in most applications unless otherwise specified.

Explanation

Copper is the most commonly used conductor for carrying current. It has low resistance, high electrical conductivity, and good thermal conductivity, making it an ideal choice for conducting electricity. Copper is also highly durable and resistant to corrosion, ensuring a long lifespan for the conductor. Additionally, copper is readily available and relatively affordable compared to other conductive materials. Therefore, copper is the preferred choice for conducting current in most applications unless otherwise specified.

3. An appliance which is fastened or otherwise secured at a specific location means a fixed appliance?

True

False

A fixed appliance refers to an appliance that is securely attached or fastened to a specific location, meaning it cannot be easily moved or relocated. Therefore, the statement that an appliance which is fastened or otherwise secured at a specific location means a fixed appliance is true.

Explanation

A fixed appliance refers to an appliance that is securely attached or fastened to a specific location, meaning it cannot be easily moved or relocated. Therefore, the statement that an appliance which is fastened or otherwise secured at a specific location means a fixed appliance is true.

4. The code definition of Bonding (Bonded) means permanent joining of metallic parts to form an electrically conductive path that will ensure electrical continuity and the capacity to conduct safely any current likely to be imposed? (18-27-100)

True

False

The statement accurately defines the term "Bonding (Bonded)" as the permanent joining of metallic parts to create a path for electrical conductivity and ensure the safe conduction of current. Therefore, the correct answer is True.

Explanation

The statement accurately defines the term "Bonding (Bonded)" as the permanent joining of metallic parts to create a path for electrical conductivity and ensure the safe conduction of current. Therefore, the correct answer is True.

5. Electric motor-driven fire pumps primary sources shall be capable of carrying indefinitely the sum of the locked-rotor current of the fire pump motor(s) and the full-load current of the associated fire pump controller accessory equipment?(18-27-695.3.)

True

False

The statement is true because electric motor-driven fire pumps primary sources need to be able to handle the locked-rotor current of the fire pump motor(s) as well as the full-load current of the associated fire pump controller accessory equipment. This requirement ensures that the primary sources can provide enough power to the fire pump system during emergencies, allowing it to operate effectively and efficiently.

Explanation

The statement is true because electric motor-driven fire pumps primary sources need to be able to handle the locked-rotor current of the fire pump motor(s) as well as the full-load current of the associated fire pump controller accessory equipment. This requirement ensures that the primary sources can provide enough power to the fire pump system during emergencies, allowing it to operate effectively and efficiently.

6. It is generally other than industrial; normally built-in standardized sizes and types; installed or connected as a unit to perform one or more functions, such as clothes washing, air conditioning, food mixing, cooking, etc is a definition of an appliance?

True

False

The given definition describes an appliance as something that is typically not industrial, comes in standardized sizes and types, and is installed or connected as a unit to perform specific functions such as washing clothes or cooking food. This aligns with the common understanding of an appliance, making the answer "True".

Explanation

The given definition describes an appliance as something that is typically not industrial, comes in standardized sizes and types, and is installed or connected as a unit to perform specific functions such as washing clothes or cooking food. This aligns with the common understanding of an appliance, making the answer "True".

7. Alternating current is electrical current which is constantly varying in amplitude, and which changes direction at regular intervals.

True

False

The given statement accurately defines alternating current as an electrical current that continuously fluctuates in magnitude and reverses direction at regular intervals. This is true because AC power is commonly used in households and industries due to its ability to efficiently transmit electricity over long distances and its compatibility with various devices.

Explanation

The given statement accurately defines alternating current as an electrical current that continuously fluctuates in magnitude and reverses direction at regular intervals. This is true because AC power is commonly used in households and industries due to its ability to efficiently transmit electricity over long distances and its compatibility with various devices.

8. A transformer used for the supply of underwater fixtures in swimming pools shall be an isolated winding type that has a grounded metal barrier between the primary and secondary windings?(18-27-680.5.)

True

False

The statement is true because a transformer used for the supply of underwater fixtures in swimming pools needs to be an isolated winding type. This means that there should be a grounded metal barrier between the primary and secondary windings. This barrier helps to prevent any electrical leakage or shock hazards in the swimming pool, ensuring the safety of the users.

Explanation

The statement is true because a transformer used for the supply of underwater fixtures in swimming pools needs to be an isolated winding type. This means that there should be a grounded metal barrier between the primary and secondary windings. This barrier helps to prevent any electrical leakage or shock hazards in the swimming pool, ensuring the safety of the users.

9. Current-carrying capacity expressed in amperes means ampacity?

True

False

The statement is true. Ampacity refers to the maximum amount of electric current that a conductor can carry without exceeding its temperature rating. It is expressed in amperes. Therefore, current-carrying capacity expressed in amperes is indeed ampacity.

Explanation

The statement is true. Ampacity refers to the maximum amount of electric current that a conductor can carry without exceeding its temperature rating. It is expressed in amperes. Therefore, current-carrying capacity expressed in amperes is indeed ampacity.

10. Electrical drawing are to be submitted, with all permit applications for electrical services 400 amps or larger?

True

False

Electrical drawings are required to be submitted with all permit applications for electrical services that are 400 amps or larger. This means that any electrical service that exceeds 400 amps will need to have accompanying electrical drawings when applying for a permit. This is likely done to ensure that the electrical system is properly designed and meets all safety and code requirements.

Explanation

Electrical drawings are required to be submitted with all permit applications for electrical services that are 400 amps or larger. This means that any electrical service that exceeds 400 amps will need to have accompanying electrical drawings when applying for a permit. This is likely done to ensure that the electrical system is properly designed and meets all safety and code requirements.

11. Direct current is electrical current which flows in one direction only

True

False

Direct current is a type of electrical current that flows in one direction only. Unlike alternating current, which constantly changes direction, direct current maintains a constant flow in a single direction. This is typically achieved through the use of batteries or power supplies that convert alternating current into direct current. Direct current is commonly used in electronic devices, such as computers, televisions, and mobile phones, as well as in certain industrial applications. Therefore, the statement "Direct current is electrical current which flows in one direction only" is true.

Explanation

Direct current is a type of electrical current that flows in one direction only. Unlike alternating current, which constantly changes direction, direct current maintains a constant flow in a single direction. This is typically achieved through the use of batteries or power supplies that convert alternating current into direct current. Direct current is commonly used in electronic devices, such as computers, televisions, and mobile phones, as well as in certain industrial applications. Therefore, the statement "Direct current is electrical current which flows in one direction only" is true.

12. Electrical systems that are required to be grounded shall be connected to earth in a manner that will limit the voltage imposed by lightning, line surges, or unintentional contact with higher voltage lines and that will stabilize the voltage to earth during normal operation?(18-27-250.2.)

True

False

Electrical systems that are required to be grounded are connected to earth in order to protect them from voltage surges caused by lightning, line surges, or unintentional contact with higher voltage lines. This grounding helps to limit the voltage imposed on the system and stabilize the voltage to earth during normal operation. Therefore, the statement is true.

Explanation

Electrical systems that are required to be grounded are connected to earth in order to protect them from voltage surges caused by lightning, line surges, or unintentional contact with higher voltage lines. This grounding helps to limit the voltage imposed on the system and stabilize the voltage to earth during normal operation. Therefore, the statement is true.

13. Flexible cords and cables can be used to install pendants? (18-27-400.7. )

True

False

Flexible cords and cables can be used to install pendants because they provide a flexible and versatile solution for connecting lighting fixtures to the electrical supply. They are able to bend and move easily, allowing for adjustable positioning of the pendant. Additionally, flexible cords and cables are designed to withstand the electrical load and provide a safe and reliable connection. Therefore, using flexible cords and cables for pendant installation is a suitable and acceptable method.

Explanation

Flexible cords and cables can be used to install pendants because they provide a flexible and versatile solution for connecting lighting fixtures to the electrical supply. They are able to bend and move easily, allowing for adjustable positioning of the pendant. Additionally, flexible cords and cables are designed to withstand the electrical load and provide a safe and reliable connection. Therefore, using flexible cords and cables for pendant installation is a suitable and acceptable method.

14. (As applied to wiring methods). Not permanently closed in by the structure or finish of the building; capable of being removed without disturbing the building structure or finish means accessible?

True

False

The statement is asking whether something that is not permanently closed in by the structure or finish of a building and can be removed without disturbing the building structure or finish is considered accessible. The correct answer is True because if something can be easily removed without causing any damage or disruption to the building, it can be considered accessible.

Explanation

The statement is asking whether something that is not permanently closed in by the structure or finish of a building and can be removed without disturbing the building structure or finish is considered accessible. The correct answer is True because if something can be easily removed without causing any damage or disruption to the building, it can be considered accessible.

15. A service supplying a building or other structure can not pass through the interior of another building or other structure.

True

False

This statement is true because a service supplying a building or structure, such as plumbing or electrical wiring, cannot physically pass through the interior of another building or structure without causing damage or disruption. Each building or structure has its own separate infrastructure and systems, and it is not possible for one building's services to directly pass through another.

Explanation

This statement is true because a service supplying a building or structure, such as plumbing or electrical wiring, cannot physically pass through the interior of another building or structure without causing damage or disruption. Each building or structure has its own separate infrastructure and systems, and it is not possible for one building's services to directly pass through another.

16. Service disconnecting means shall be installed at what kind of location.

Dry location with-in 10 ft of service entrance to building

Readily accessible location with-in 5 ft of service entrance to building

The correct answer is "readily accessible location with-in 5 ft of service entrance to building." This means that the service disconnecting means, which is used to disconnect the electrical supply to a building or structure, should be installed in a location that is easily accessible and within 5 feet of the service entrance. This ensures that it can be quickly and easily reached in case of an emergency or for maintenance purposes.

Explanation

The correct answer is "readily accessible location with-in 5 ft of service entrance to building." This means that the service disconnecting means, which is used to disconnect the electrical supply to a building or structure, should be installed in a location that is easily accessible and within 5 feet of the service entrance. This ensures that it can be quickly and easily reached in case of an emergency or for maintenance purposes.

17. These units of electric load must be converted to amperes in order to obtain the size of wire necessary to carry the load (Kilowatts, Volt amperes, Kilovolt amperes, and Horsepower). Ref: R. S. Means - D5010-120 Electric Circuit Voltages

True

False

The statement is true because in order to determine the size of wire necessary to carry the load, the electric load units such as kilowatts, volt amperes, kilovolt amperes, and horsepower need to be converted to amperes. This is because amperes is the unit used to measure electric current, and the size of wire needed depends on the amount of current that needs to be carried.

Explanation

The statement is true because in order to determine the size of wire necessary to carry the load, the electric load units such as kilowatts, volt amperes, kilovolt amperes, and horsepower need to be converted to amperes. This is because amperes is the unit used to measure electric current, and the size of wire needed depends on the amount of current that needs to be carried.

18. The code definition of Dead Front means without live parts exposed to a person on the operating side of the equipment?

True

False

Dead Front refers to electrical equipment or devices that have their live parts enclosed or shielded in such a way that they are not exposed to a person on the operating side. This design ensures that there is no risk of accidental contact with live parts, providing a higher level of safety for the operator. Therefore, the given statement "The code definition of Dead Front means without live parts exposed to a person on the operating side of the equipment" is true.

Explanation

Dead Front refers to electrical equipment or devices that have their live parts enclosed or shielded in such a way that they are not exposed to a person on the operating side. This design ensures that there is no risk of accidental contact with live parts, providing a higher level of safety for the operator. Therefore, the given statement "The code definition of Dead Front means without live parts exposed to a person on the operating side of the equipment" is true.

19. The branch-circuit rating for an appliance that is continuously loaded, other than a motor-operated appliance, shall not be less than 125 percent of the marked rating; or not less than 100 percent of the marked rating if the branch-circuit device and its assembly are listed for continuous loading at 100 percent of its rating?(18-27-422.10.)

True

False

This statement is true because according to the National Electrical Code (NEC) 18-27-422.10, the branch-circuit rating for an appliance that is continuously loaded, other than a motor-operated appliance, should be not less than 125 percent of the marked rating. However, if the branch-circuit device and its assembly are listed for continuous loading at 100 percent of its rating, then the branch-circuit rating can be not less than 100 percent of the marked rating.

Explanation

This statement is true because according to the National Electrical Code (NEC) 18-27-422.10, the branch-circuit rating for an appliance that is continuously loaded, other than a motor-operated appliance, should be not less than 125 percent of the marked rating. However, if the branch-circuit device and its assembly are listed for continuous loading at 100 percent of its rating, then the branch-circuit rating can be not less than 100 percent of the marked rating.

20. Ll metallic parts of the pool structure, including the reinforcing metal of the pool shell, coping stones, and deck shall be bonded?(18-27-680.22.)

True

False

According to code 18-27-680.22, all metallic parts of the pool structure, such as the reinforcing metal of the pool shell, coping stones, and deck, should be bonded. This means that they should be connected together to ensure electrical continuity and prevent the risk of electric shock. Hence, the correct answer is True.

Explanation

According to code 18-27-680.22, all metallic parts of the pool structure, such as the reinforcing metal of the pool shell, coping stones, and deck, should be bonded. This means that they should be connected together to ensure electrical continuity and prevent the risk of electric shock. Hence, the correct answer is True.

21. Which switches must indicate whether they are in the open or closed position?

General-use switches

Motor-circuit switches

Circuit breakers

All of these

All of these switches must indicate whether they are in the open or closed position. This is because it is important to know the status of the switches for safety and operational purposes. In general-use switches, it allows users to control the flow of electricity in a circuit. In motor-circuit switches, it helps in controlling the power supply to motors. Circuit breakers also need to indicate their position to show whether the circuit is open or closed, and to protect against overloads or short circuits. Therefore, all of these switches should have indicators to show their open or closed position.

Explanation

All of these switches must indicate whether they are in the open or closed position. This is because it is important to know the status of the switches for safety and operational purposes. In general-use switches, it allows users to control the flow of electricity in a circuit. In motor-circuit switches, it helps in controlling the power supply to motors. Circuit breakers also need to indicate their position to show whether the circuit is open or closed, and to protect against overloads or short circuits. Therefore, all of these switches should have indicators to show their open or closed position.

22. When bonding enclosures; metal raceways; frames; fittings and other metal non current-carrying parts; any non-conductive paint; enamel; or similar coating shall be removed at, what location?

Contact points

Contact surfaces

Threads

All of these

When bonding enclosures, metal raceways, frames, fittings, and other metal non current-carrying parts, it is important to remove any non-conductive paint, enamel, or similar coating at contact points, contact surfaces, and threads. This ensures that there is proper electrical conductivity and bonding between the metal parts, reducing the risk of electrical hazards and ensuring the effectiveness of the bonding process.

Explanation

When bonding enclosures, metal raceways, frames, fittings, and other metal non current-carrying parts, it is important to remove any non-conductive paint, enamel, or similar coating at contact points, contact surfaces, and threads. This ensures that there is proper electrical conductivity and bonding between the metal parts, reducing the risk of electrical hazards and ensuring the effectiveness of the bonding process.

23. The code definition of Accessible (as applied to wiring methods) means capable of being removed or exposed without damaging the building structure? (18-27-100)

True

False

The code definition of Accessible (as applied to wiring methods) means that the wiring methods can be removed or exposed without causing any damage to the building structure. This implies that the wiring is easily accessible for maintenance or repairs without causing any harm to the overall structure of the building. Therefore, the correct answer is True.

Explanation

The code definition of Accessible (as applied to wiring methods) means that the wiring methods can be removed or exposed without causing any damage to the building structure. This implies that the wiring is easily accessible for maintenance or repairs without causing any harm to the overall structure of the building. Therefore, the correct answer is True.

24. In new or remodeled buildings, complete and detailed electrical plans shall be required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on New or replacement services or feeders rated 400 amperes or greater (18-27-215.5.)

True

False

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before starting work on new or replacement services or feeders rated 400 amperes or greater. This ensures that the electrical work is reviewed and approved, ensuring safety and compliance with regulations. Therefore, the statement "True" is the correct answer.

Explanation

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before starting work on new or replacement services or feeders rated 400 amperes or greater. This ensures that the electrical work is reviewed and approved, ensuring safety and compliance with regulations. Therefore, the statement "True" is the correct answer.

25. Adjustable (as applied to circuit breakers) is a qualifying term indicating that the circuit breaker can be set to trip at various values of current, time, or both, within a predetermined range?(18-27-100)

True

False

The explanation for the given correct answer is that an adjustable circuit breaker is capable of being set to trip at different levels of current, time, or both within a specific range. This feature allows for customization and flexibility in protecting electrical circuits, as different situations may require different trip values. Therefore, the statement that adjustable circuit breakers can be set to trip at various values of current, time, or both within a predetermined range is true.

Explanation

The explanation for the given correct answer is that an adjustable circuit breaker is capable of being set to trip at different levels of current, time, or both within a specific range. This feature allows for customization and flexibility in protecting electrical circuits, as different situations may require different trip values. Therefore, the statement that adjustable circuit breakers can be set to trip at various values of current, time, or both within a predetermined range is true.

26. A circuit breaker with a slash rating, such as 120/240V or 480Y/277V, shall be permitted to be applied in a circuit where the nominal voltage of any conductor to ground does not exceed the lower of the two values of the circuit breaker's voltage rating and the nominal voltage between any two conductors does not exceed the higher value of the circuit breaker's voltage rating?(18-27-240.85.)

True

False

A circuit breaker with a slash rating, such as 120/240V or 480Y/277V, can be used in a circuit where the voltage of any conductor to ground is lower than or equal to the lower value of the circuit breaker's voltage rating. Additionally, the voltage between any two conductors in the circuit should be lower than or equal to the higher value of the circuit breaker's voltage rating. This means that the circuit breaker can handle both the lower and higher voltages within its rating, making the statement true.

Explanation

A circuit breaker with a slash rating, such as 120/240V or 480Y/277V, can be used in a circuit where the voltage of any conductor to ground is lower than or equal to the lower value of the circuit breaker's voltage rating. Additionally, the voltage between any two conductors in the circuit should be lower than or equal to the higher value of the circuit breaker's voltage rating. This means that the circuit breaker can handle both the lower and higher voltages within its rating, making the statement true.

27. Where installed in raceways, conductors of size No. 8 and larger shall be stranded?(18-27-310.3.)

True

False

According to 18-27-310.3, conductors of size No. 8 and larger should be stranded when installed in raceways.

Explanation

According to 18-27-310.3, conductors of size No. 8 and larger should be stranded when installed in raceways.

28. Flexible cables can be used to install elevators? (18-27-400.7. )

True

False

Flexible cables can be used to install elevators because they offer the advantage of being able to bend and flex, making them suitable for the vertical movement required in elevator systems. These cables are designed to withstand the constant motion and tension involved in elevator operation, ensuring safe and reliable transportation of people or goods. Additionally, flexible cables allow for easier installation and maintenance compared to rigid alternatives, making them a practical choice for elevator installations.

Explanation

Flexible cables can be used to install elevators because they offer the advantage of being able to bend and flex, making them suitable for the vertical movement required in elevator systems. These cables are designed to withstand the constant motion and tension involved in elevator operation, ensuring safe and reliable transportation of people or goods. Additionally, flexible cables allow for easier installation and maintenance compared to rigid alternatives, making them a practical choice for elevator installations.

29. Fixture wires shall not be used as branch-circuit conductors(18-27-402.11.)

True

False

According to the National Electrical Code (18-27-402.11), fixture wires should not be used as branch-circuit conductors. This means that the wires specifically designed for connecting light fixtures should not be used to supply power to other devices or outlets. Using fixture wires as branch-circuit conductors can lead to safety hazards and code violations. Therefore, the statement "Fixture wires shall not be used as branch-circuit conductors" is true.

Explanation

According to the National Electrical Code (18-27-402.11), fixture wires should not be used as branch-circuit conductors. This means that the wires specifically designed for connecting light fixtures should not be used to supply power to other devices or outlets. Using fixture wires as branch-circuit conductors can lead to safety hazards and code violations. Therefore, the statement "Fixture wires shall not be used as branch-circuit conductors" is true.

30. In new or remodeled buildings, complete and detailed electrical plans shall be required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Swimming pools (18-27-215.5.)

True

False

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before starting work on swimming pools. This ensures that the electrical systems in the swimming pools are designed and installed correctly, reducing the risk of electrical hazards and ensuring the safety of the users. Therefore, the statement is true.

Explanation

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before starting work on swimming pools. This ensures that the electrical systems in the swimming pools are designed and installed correctly, reducing the risk of electrical hazards and ensuring the safety of the users. Therefore, the statement is true.

31. The code definition of voltages means the voltage rating of electrical equipment shall not be less than the nominal voltage of a circuit to which it is connected?(18-27-110.4.)

True

False

The statement is true because according to the code definition of voltages, the voltage rating of electrical equipment should always be equal to or greater than the nominal voltage of the circuit it is connected to. This ensures that the equipment can handle the electrical load and prevents any potential damage or malfunctioning that may occur if the voltage rating is lower than the nominal voltage.

Explanation

The statement is true because according to the code definition of voltages, the voltage rating of electrical equipment should always be equal to or greater than the nominal voltage of the circuit it is connected to. This ensures that the equipment can handle the electrical load and prevents any potential damage or malfunctioning that may occur if the voltage rating is lower than the nominal voltage.

32. Conductive materials enclosing electrical conductors or equipment, or forming part of such equipment, shall be connected to earth so as to limit the voltage to ground on these materials?(18-27-250.2.)

True

False

Conductive materials enclosing electrical conductors or equipment need to be connected to earth in order to limit the voltage to ground on these materials. This is important for safety reasons, as it helps prevent electrical shocks and ensures that any potential electrical faults are safely directed to the ground. By connecting these materials to earth, the voltage is effectively limited, reducing the risk of harm to individuals and damage to equipment. Therefore, the statement "Conductive materials enclosing electrical conductors or equipment, or forming part of such equipment, shall be connected to earth so as to limit the voltage to ground on these materials" is true.

Explanation

Conductive materials enclosing electrical conductors or equipment need to be connected to earth in order to limit the voltage to ground on these materials. This is important for safety reasons, as it helps prevent electrical shocks and ensures that any potential electrical faults are safely directed to the ground. By connecting these materials to earth, the voltage is effectively limited, reducing the risk of harm to individuals and damage to equipment. Therefore, the statement "Conductive materials enclosing electrical conductors or equipment, or forming part of such equipment, shall be connected to earth so as to limit the voltage to ground on these materials" is true.

33. Any person who knowingly violates a stop work order can be incarceration for a term not less than three days, nor more than six months? (13-12-080)

True

False

The given statement is true. According to section 13-12-080, any person who knowingly violates a stop work order can be incarcerated for a term of not less than three days and not more than six months. This means that if someone intentionally disregards a stop work order, they can face imprisonment for a specified period of time as punishment for their actions.

Explanation

The given statement is true. According to section 13-12-080, any person who knowingly violates a stop work order can be incarcerated for a term of not less than three days and not more than six months. This means that if someone intentionally disregards a stop work order, they can face imprisonment for a specified period of time as punishment for their actions.

34. If upon notification of electrical defects, all defects are not corrected in 15 days, all permit privileges are suspended?

True

False

If electrical defects are reported and not fixed within 15 days, the permit privileges will be suspended. This means that if there are any issues with the electrical system and they are not addressed within the specified time frame, the individual or organization responsible for the permit will no longer have the authority to continue their activities. This emphasizes the importance of promptly addressing and resolving any electrical defects to maintain permit privileges.

Explanation

If electrical defects are reported and not fixed within 15 days, the permit privileges will be suspended. This means that if there are any issues with the electrical system and they are not addressed within the specified time frame, the individual or organization responsible for the permit will no longer have the authority to continue their activities. This emphasizes the importance of promptly addressing and resolving any electrical defects to maintain permit privileges.

35. In new or remodeled buildings, complete and detailed electrical plans shall be required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Warehouses greater than two stories in height (18-27-215.5.)

True

False

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before starting work on Warehouses greater than two stories in height. This ensures that the electrical systems in these buildings are properly designed and installed, meeting safety standards and regulations. By reviewing these plans, the Electrical Bureau can identify any potential issues or hazards and provide guidance to ensure compliance with electrical codes. Therefore, the statement "True" is the correct answer.

Explanation

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before starting work on Warehouses greater than two stories in height. This ensures that the electrical systems in these buildings are properly designed and installed, meeting safety standards and regulations. By reviewing these plans, the Electrical Bureau can identify any potential issues or hazards and provide guidance to ensure compliance with electrical codes. Therefore, the statement "True" is the correct answer.

36. Upon notification of electrical defects, all defects must be corrected in 15 days?

True

False

All electrical defects must be corrected within 15 days upon notification. This means that once any electrical issues are reported or identified, they need to be fixed within the given time frame.

Explanation

All electrical defects must be corrected within 15 days upon notification. This means that once any electrical issues are reported or identified, they need to be fixed within the given time frame.

37. Where isolation of objectionable dc ground currents from cathodic protection systems is required, a listed ac coupling/dc isolating device shall be permitted in the equipment grounding path to provide an effective return path for ac ground-fault current while blocking dc current? (18-27-250.6.)

True

False

When isolation of objectionable dc ground currents from cathodic protection systems is necessary, a listed ac coupling/dc isolating device can be used in the equipment grounding path. This device allows for an effective return path for ac ground-fault current while blocking dc current. This ensures that the ground-fault current can flow safely while preventing any unwanted dc currents from interfering with the cathodic protection system. Therefore, the statement is true.

Explanation

When isolation of objectionable dc ground currents from cathodic protection systems is necessary, a listed ac coupling/dc isolating device can be used in the equipment grounding path. This device allows for an effective return path for ac ground-fault current while blocking dc current. This ensures that the ground-fault current can flow safely while preventing any unwanted dc currents from interfering with the cathodic protection system. Therefore, the statement is true.

38. Circuit breakers shall be trip free and capable of being closed and opened by manual operation?(18-27-240.80.)

True

False

The statement is true because according to the given code section (18-27-240.80), circuit breakers must be trip free, meaning they cannot be held closed after a fault occurs. Additionally, they must be capable of being manually operated, both for closing and opening. Therefore, the circuit breakers must meet these requirements to be considered compliant.

Explanation

The statement is true because according to the given code section (18-27-240.80), circuit breakers must be trip free, meaning they cannot be held closed after a fault occurs. Additionally, they must be capable of being manually operated, both for closing and opening. Therefore, the circuit breakers must meet these requirements to be considered compliant.

39. What is the minimum distance of clearance that, service conductors installed as open conductors without an overall outer jacket must have from windows that, are designed to be opened?

3-Ft

5-Ft

6-Ft.

The minimum distance of clearance that service conductors installed as open conductors without an overall outer jacket must have from windows that are designed to be opened is 3 feet. This clearance is necessary to ensure the safety of the windows and prevent any potential hazards or accidents that may arise from the proximity of the conductors.

Explanation

The minimum distance of clearance that service conductors installed as open conductors without an overall outer jacket must have from windows that are designed to be opened is 3 feet. This clearance is necessary to ensure the safety of the windows and prevent any potential hazards or accidents that may arise from the proximity of the conductors.

40. Two conductor NM cables cannot be stapled on edge.

True

False

Two conductor NM cables cannot be stapled on edge because it can damage the cables and compromise their insulation. When stapling cables, it is important to ensure that they are properly secured without causing any harm to the wires. Stapling on the edge can lead to punctures or cuts in the cables, which can result in electrical hazards or malfunctions. Therefore, it is recommended to staple the cables flat against a surface to maintain their integrity and prevent any potential issues.

Explanation

Two conductor NM cables cannot be stapled on edge because it can damage the cables and compromise their insulation. When stapling cables, it is important to ensure that they are properly secured without causing any harm to the wires. Stapling on the edge can lead to punctures or cuts in the cables, which can result in electrical hazards or malfunctions. Therefore, it is recommended to staple the cables flat against a surface to maintain their integrity and prevent any potential issues.

41. Central heating equipment other than fixed electric space-heating equipment shall be supplied by an individual branch circuit. Auxiliary equipment such as a pump, valve, humidifier, or electrostatic air cleaner directly associated with the heating equipment shall be permitted to be connected to the same branch circuit? (18-27-422.12.)

True

False

Auxiliary equipment such as a pump, valve, humidifier, or electrostatic air cleaner that is directly associated with the heating equipment is permitted to be connected to the same branch circuit. This means that while the central heating equipment must have its own individual branch circuit, the auxiliary equipment can share that circuit.

Explanation

Auxiliary equipment such as a pump, valve, humidifier, or electrostatic air cleaner that is directly associated with the heating equipment is permitted to be connected to the same branch circuit. This means that while the central heating equipment must have its own individual branch circuit, the auxiliary equipment can share that circuit.

42. Ground-fault circuit interrupters for swimming pools are permitted in a panel board that contains circuits protected by other than ground-fault circuit interrupters?(18-27-680.5.)

True

False

Ground-fault circuit interrupters (GFCIs) are allowed to be installed in a panel board that also contains circuits protected by devices other than GFCIs. This means that even if some circuits in the panel board are protected by different types of circuit interrupters, it is still permissible to have GFCIs installed for swimming pools. This is important for safety purposes as GFCIs are specifically designed to protect against electrical shock hazards in wet environments like swimming pools. Therefore, the statement is true.

Explanation

Ground-fault circuit interrupters (GFCIs) are allowed to be installed in a panel board that also contains circuits protected by devices other than GFCIs. This means that even if some circuits in the panel board are protected by different types of circuit interrupters, it is still permissible to have GFCIs installed for swimming pools. This is important for safety purposes as GFCIs are specifically designed to protect against electrical shock hazards in wet environments like swimming pools. Therefore, the statement is true.

43. What is a disadvantage of a direct-current system with respect to supply voltage?

The dc voltage must not be generated at the level required by the load.

The dc voltage must be generated at the level required by the load.

A disadvantage of a direct-current system with respect to supply voltage is that the dc voltage must be generated at the level required by the load. This means that the voltage needs to be adjusted and regulated to match the specific requirements of the load, which can be a more complex and costly process compared to an alternating-current system where the voltage is easily adjustable through transformers.

Explanation

A disadvantage of a direct-current system with respect to supply voltage is that the dc voltage must be generated at the level required by the load. This means that the voltage needs to be adjusted and regulated to match the specific requirements of the load, which can be a more complex and costly process compared to an alternating-current system where the voltage is easily adjustable through transformers.

44. Which of the following is a provision of the Chicago Electrical Code for transformers?

Water piping is not permitted to pass through a transformer vault.

Electric furnace transformers with a total rating greater than 25 KVA shall be installed in a vault.

The provision of the Chicago Electrical Code for transformers states that water piping is not allowed to pass through a transformer vault. This regulation ensures the safety and integrity of the transformer by preventing any potential water damage that could occur if the piping were to leak or break. By prohibiting water piping in the vault, the code aims to minimize the risk of electrical malfunctions or accidents caused by water contact.

Explanation

The provision of the Chicago Electrical Code for transformers states that water piping is not allowed to pass through a transformer vault. This regulation ensures the safety and integrity of the transformer by preventing any potential water damage that could occur if the piping were to leak or break. By prohibiting water piping in the vault, the code aims to minimize the risk of electrical malfunctions or accidents caused by water contact.

45. A three gang meter 100 amp service can be installed for, a two unit Multi-family residential dwelling?

True

False

A three gang meter 100 amp service can be installed for a two-unit multi-family residential dwelling because each unit can be allocated a separate meter and the total service capacity of 100 amps is sufficient to meet the electrical needs of both units. This setup allows for accurate measurement of electricity usage and ensures that each unit is billed separately for their consumption.

Explanation

A three gang meter 100 amp service can be installed for a two-unit multi-family residential dwelling because each unit can be allocated a separate meter and the total service capacity of 100 amps is sufficient to meet the electrical needs of both units. This setup allows for accurate measurement of electricity usage and ensures that each unit is billed separately for their consumption.

46. Any person who knowingly violates a stop work order is subject to a a fine of not less than $400, nor more than $1,000 for the first offense? (13-12-080)

True

False

According to section 13-12-080, any person who knowingly violates a stop work order is subject to a fine of not less than $400, nor more than $1,000 for the first offense. Therefore, the statement "Any person who knowingly violates a stop work order is subject to a fine of not less than $400, nor more than $1,000 for the first offense" is true.

Explanation

According to section 13-12-080, any person who knowingly violates a stop work order is subject to a fine of not less than $400, nor more than $1,000 for the first offense. Therefore, the statement "Any person who knowingly violates a stop work order is subject to a fine of not less than $400, nor more than $1,000 for the first offense" is true.

47. Other than purposes listed in Section 18-27-400.7, flexible cords and cables may run through holes in walls?

True

False

Flexible cords and cables may not run through holes in walls unless they are being used for one of the purposes listed in Section 18-27-400.7. This means that unless the cords and cables are being used for specific applications such as connecting equipment, temporary wiring, or other approved uses, they are not allowed to pass through holes in walls. Therefore, the correct answer is False.

Explanation

Flexible cords and cables may not run through holes in walls unless they are being used for one of the purposes listed in Section 18-27-400.7. This means that unless the cords and cables are being used for specific applications such as connecting equipment, temporary wiring, or other approved uses, they are not allowed to pass through holes in walls. Therefore, the correct answer is False.

48. A motor draws 83 amps at a voltage of 460 with a feeder ft. length of 190. The copper wire (75 degree C) size desired is #3, Which minimum size copper wire is permissible by code to use?

3

2

1

The correct answer is 3. According to the given information, the motor draws 83 amps at a voltage of 460, and the desired copper wire size is #3. The National Electrical Code (NEC) specifies the minimum wire size based on the current carrying capacity. Since the motor draws 83 amps, the #3 copper wire is permissible as it can handle that current load. Therefore, the minimum size copper wire permissible by code to use is #3.

Explanation

The correct answer is 3. According to the given information, the motor draws 83 amps at a voltage of 460, and the desired copper wire size is #3. The National Electrical Code (NEC) specifies the minimum wire size based on the current carrying capacity. Since the motor draws 83 amps, the #3 copper wire is permissible as it can handle that current load. Therefore, the minimum size copper wire permissible by code to use is #3.

49. The computed floor area of dwelling units, shall include open or enclosed porches.

True

False

The computed floor area of dwelling units does not include open or enclosed porches.

Explanation

The computed floor area of dwelling units does not include open or enclosed porches.

50. An outlet for a specific appliance not covered in Article 220 shall have the computed ampere rating based on what?

Appliance rated amperes

180 volt-amperes for outlet

2000 watts per appliance

The correct answer is "appliance rated amperes". This means that the ampere rating for an outlet for a specific appliance that is not covered in Article 220 (which provides guidelines for calculating electrical loads) should be based on the rated amperes of the appliance itself. This ensures that the outlet can safely handle the electrical current required by the appliance.

Explanation

The correct answer is "appliance rated amperes". This means that the ampere rating for an outlet for a specific appliance that is not covered in Article 220 (which provides guidelines for calculating electrical loads) should be based on the rated amperes of the appliance itself. This ensures that the outlet can safely handle the electrical current required by the appliance.

51. Type SE service-entrance cable shall be permitted where the fully insulated conductors are used for circuit wiring and the uninsulated conductor is used for equipment grounding purposes?(18-27-338.2)

True

False

SE service-entrance cable is allowed when fully insulated conductors are used for circuit wiring and an uninsulated conductor is used for equipment grounding purposes. This means that the cable can be used to supply power to a building or structure, with the insulated conductors carrying the electrical current and the uninsulated conductor providing a path for any fault currents to safely return to the ground. This setup ensures the safety of the electrical system by properly grounding the equipment and minimizing the risk of electrical shock or damage. Therefore, the statement is true.

Explanation

SE service-entrance cable is allowed when fully insulated conductors are used for circuit wiring and an uninsulated conductor is used for equipment grounding purposes. This means that the cable can be used to supply power to a building or structure, with the insulated conductors carrying the electrical current and the uninsulated conductor providing a path for any fault currents to safely return to the ground. This setup ensures the safety of the electrical system by properly grounding the equipment and minimizing the risk of electrical shock or damage. Therefore, the statement is true.

52. The re-inspection fee for a defect found is $75.00?

True

False

The statement is true because it states that the re-inspection fee for a defect found is $75.00. This implies that if a defect is found during an inspection, an additional fee of $75.00 will be charged for a re-inspection.

Explanation

The statement is true because it states that the re-inspection fee for a defect found is $75.00. This implies that if a defect is found during an inspection, an additional fee of $75.00 will be charged for a re-inspection.

53. Type SE service-entrance cables without individual insulation on the grounded circuit conductor shall not be permitted as a branch circuit within a building? (18-27-338.2)

True

False

SE service-entrance cables without individual insulation on the grounded circuit conductor should not be used as a branch circuit within a building. This is because these cables are specifically designed for use as service-entrance conductors, which are intended to supply power to the building from the utility source. Using them as branch circuits within the building would not provide the necessary level of protection and could pose safety hazards. Therefore, it is true that these cables should not be permitted as branch circuits within a building.

Explanation

SE service-entrance cables without individual insulation on the grounded circuit conductor should not be used as a branch circuit within a building. This is because these cables are specifically designed for use as service-entrance conductors, which are intended to supply power to the building from the utility source. Using them as branch circuits within the building would not provide the necessary level of protection and could pose safety hazards. Therefore, it is true that these cables should not be permitted as branch circuits within a building.

54. Service conductors are considered outside of a building or other structure if, they are installed within a building in a raceway, and encased in not less than how much concrete?

2'

4'

6'

Service conductors are considered outside of a building or other structure if they are installed within a building in a raceway and encased in not less than 2 feet of concrete. This means that if the service conductors are placed inside a building but are surrounded by at least 2 feet of concrete, they are still considered to be outside the building.

Explanation

Service conductors are considered outside of a building or other structure if they are installed within a building in a raceway and encased in not less than 2 feet of concrete. This means that if the service conductors are placed inside a building but are surrounded by at least 2 feet of concrete, they are still considered to be outside the building.

55. For devices rated 800 amperes or less, the next higher standard overcurrent device rating (above the ampacity of the conductors being protected) shall be permitted to be used, provided all required conditions are met, which of the following is/are a required condition/s?

The conductors being protected are not part of a multi-outlet branch circuit supplying receptacles for cord-and plug-connected portable loads

The next higher standard rating selected does not exceed 800 amperes.

All Above

All of the given conditions are required in order to use the next higher standard overcurrent device rating for devices rated 800 amperes or less. The first condition states that the conductors being protected should not be part of a multi-outlet branch circuit supplying receptacles for cord-and plug-connected portable loads. The second condition states that the ampacity of the conductors should not correspond with the standard ampere rating of a fuse or a circuit breaker with overload trip adjustments above its rating, but it can have other trip or rating adjustments. The third condition states that the next higher standard rating selected should not exceed 800 amperes. Therefore, all of these conditions must be met.

Explanation

All of the given conditions are required in order to use the next higher standard overcurrent device rating for devices rated 800 amperes or less. The first condition states that the conductors being protected should not be part of a multi-outlet branch circuit supplying receptacles for cord-and plug-connected portable loads. The second condition states that the ampacity of the conductors should not correspond with the standard ampere rating of a fuse or a circuit breaker with overload trip adjustments above its rating, but it can have other trip or rating adjustments. The third condition states that the next higher standard rating selected should not exceed 800 amperes. Therefore, all of these conditions must be met.

56. Other than purposes listed in Section 18-27-400.7, flexible cords and cables may substitute for the fixed wiring of a structure?

True

False

Flexible cords and cables are not meant to substitute for the fixed wiring of a structure, except for specific purposes listed in Section 18-27-400.7. This means that in general, flexible cords and cables should not be used as a permanent replacement for fixed wiring. They are designed for temporary or portable use, such as connecting appliances or equipment to a power source. Using flexible cords and cables as a permanent substitute for fixed wiring can pose safety risks and may not meet the necessary electrical code requirements. Therefore, the correct answer is False.

Explanation

Flexible cords and cables are not meant to substitute for the fixed wiring of a structure, except for specific purposes listed in Section 18-27-400.7. This means that in general, flexible cords and cables should not be used as a permanent replacement for fixed wiring. They are designed for temporary or portable use, such as connecting appliances or equipment to a power source. Using flexible cords and cables as a permanent substitute for fixed wiring can pose safety risks and may not meet the necessary electrical code requirements. Therefore, the correct answer is False.

57. Supply conductors to a feed-through type ground-fault circuit interrupter for swimming pools are permitted in the same enclosure?(18-27-680.5.)

True

False

According to section 18-27-680.5, supply conductors to a feed-through type ground-fault circuit interrupter for swimming pools are allowed in the same enclosure.

Explanation

According to section 18-27-680.5, supply conductors to a feed-through type ground-fault circuit interrupter for swimming pools are allowed in the same enclosure.

58. What disadvantage of a direct current is due to the resistance of the transmission wires?

The I 2R power loss is excessive

The I 2R power loss is less excessive

The disadvantage of a direct current due to the resistance of the transmission wires is the excessive power loss, known as the I 2R power loss. This means that as the current flows through the wires, it encounters resistance, causing energy to be lost in the form of heat. This power loss can be significant, resulting in a decrease in overall efficiency and effectiveness of the direct current system.

Explanation

The disadvantage of a direct current due to the resistance of the transmission wires is the excessive power loss, known as the I 2R power loss. This means that as the current flows through the wires, it encounters resistance, causing energy to be lost in the form of heat. This power loss can be significant, resulting in a decrease in overall efficiency and effectiveness of the direct current system.

59. What is the minimum Volt-Amperes per Square Foot of, General Lighting Load for a Barber shop that, you can use?

2

3

3 1/2

The minimum Volt-Amperes per Square Foot of General Lighting Load for a Barber shop is 3. This means that for every square foot of the shop, there should be a minimum of 3 Volt-Amperes of general lighting load. This requirement ensures that there is sufficient electrical power for the lighting needs of the barber shop, providing adequate illumination for the workspace and creating a comfortable environment for both the barbers and the customers.

Explanation

The minimum Volt-Amperes per Square Foot of General Lighting Load for a Barber shop is 3. This means that for every square foot of the shop, there should be a minimum of 3 Volt-Amperes of general lighting load. This requirement ensures that there is sufficient electrical power for the lighting needs of the barber shop, providing adequate illumination for the workspace and creating a comfortable environment for both the barbers and the customers.

60. Electrical work may start after a permit application has been submitted to the city.

True

False

Electrical work may not start after a permit application has been submitted to the city. The permit application needs to be approved by the city before any electrical work can begin.

Explanation

Electrical work may not start after a permit application has been submitted to the city. The permit application needs to be approved by the city before any electrical work can begin.

61. What is the minimum Volt-Amperes per Square Foot of, General Lighting Load for a Court room that, you can use?

2

3

3 1/2

The minimum Volt-Amperes per Square Foot of general lighting load that can be used in a courtroom is 2.

Explanation

The minimum Volt-Amperes per Square Foot of general lighting load that can be used in a courtroom is 2.

62. Ungrounded wiring systems shall be equipped with ground detectors on the line side of the service disconnection means? (18-27-250.20.)

True

False

The statement is true because according to the National Electrical Code (NEC) section 250.20, ungrounded wiring systems must be equipped with ground detectors on the line side of the service disconnection means. This requirement ensures that any fault or abnormal condition in the grounding system can be detected and addressed promptly, reducing the risk of electrical hazards such as electric shocks or fires. By having ground detectors in place, any faults in the grounding system can be quickly identified and corrected, promoting electrical safety.

Explanation

The statement is true because according to the National Electrical Code (NEC) section 250.20, ungrounded wiring systems must be equipped with ground detectors on the line side of the service disconnection means. This requirement ensures that any fault or abnormal condition in the grounding system can be detected and addressed promptly, reducing the risk of electrical hazards such as electric shocks or fires. By having ground detectors in place, any faults in the grounding system can be quickly identified and corrected, promoting electrical safety.

63. (As applied to equipment). Admitting close approach because not guarded by locked doors means accessible?

True

False

The correct answer is true because if something is not guarded by locked doors, it means that it is accessible or can be easily approached. This implies that there are no physical barriers or restrictions preventing someone from getting close to the equipment. Therefore, the equipment is considered to be accessible and can be approached without any hindrance.

Explanation

The correct answer is true because if something is not guarded by locked doors, it means that it is accessible or can be easily approached. This implies that there are no physical barriers or restrictions preventing someone from getting close to the equipment. Therefore, the equipment is considered to be accessible and can be approached without any hindrance.

64. A motor draws 165 amps at a voltage of 460 with a feeder ft. length of 190. The copper wire (75 degree C) size desired is #2/0, what would the voltage drop be?

5.7

6.5

4.4

The voltage drop in a circuit can be calculated using the formula V = I * R, where V is the voltage drop, I is the current, and R is the resistance. In this case, the current is given as 165 amps and the resistance can be calculated using the formula R = (ρ * L) / A, where ρ is the resistivity of the wire, L is the length of the wire, and A is the cross-sectional area of the wire. Since the wire size desired is #2/0, we can look up the resistivity and cross-sectional area in a table. Plugging in the values, we can calculate the resistance and then use it to find the voltage drop. The result is 5.7 volts.

Explanation

The voltage drop in a circuit can be calculated using the formula V = I * R, where V is the voltage drop, I is the current, and R is the resistance. In this case, the current is given as 165 amps and the resistance can be calculated using the formula R = (ρ * L) / A, where ρ is the resistivity of the wire, L is the length of the wire, and A is the cross-sectional area of the wire. Since the wire size desired is #2/0, we can look up the resistivity and cross-sectional area in a table. Plugging in the values, we can calculate the resistance and then use it to find the voltage drop. The result is 5.7 volts.

65. For purpose of computing service loads, the voltages not to be used is, 120/220V

True

False

The statement "For purpose of computing service loads, the voltages not to be used is, 120/220V" is false. This means that the voltages 120/220V can be used for computing service loads.

Explanation

The statement "For purpose of computing service loads, the voltages not to be used is, 120/220V" is false. This means that the voltages 120/220V can be used for computing service loads.

66. When a service voltage exceeds 15,000 volts between conductors enter a building, they shall terminate in a?

Metal enclosed switchgear compartment

A transformer vault

A metal enclosed switchgear compartment or a transformer vault

When a service voltage exceeds 15,000 volts between conductors enter a building, it is necessary to terminate the voltage in a metal enclosed switchgear compartment or a transformer vault. This is because these compartments provide the necessary protection and containment for high voltage equipment. They are designed to safely house and control the electrical equipment, ensuring the safety of the building and its occupants. Both options are suitable for terminating the high voltage service voltage and comply with the necessary safety regulations.

Explanation

When a service voltage exceeds 15,000 volts between conductors enter a building, it is necessary to terminate the voltage in a metal enclosed switchgear compartment or a transformer vault. This is because these compartments provide the necessary protection and containment for high voltage equipment. They are designed to safely house and control the electrical equipment, ensuring the safety of the building and its occupants. Both options are suitable for terminating the high voltage service voltage and comply with the necessary safety regulations.

67. For conductors that are not spliced, or terminated at the outlet, junction, or switch point where the opening to an outlet, junction, or switch point is less than 8 in. in any dimension, each conductor shall be long enough to extend at least 3 in. outside the opening?(18-27-300.14.)

True

False

According to the given information, for conductors that are not spliced or terminated at the outlet, junction, or switch point with an opening less than 8 inches in any dimension, each conductor should be long enough to extend at least 3 inches outside the opening. This means that the statement is true.

Explanation

According to the given information, for conductors that are not spliced or terminated at the outlet, junction, or switch point with an opening less than 8 inches in any dimension, each conductor should be long enough to extend at least 3 inches outside the opening. This means that the statement is true.

68. A motor draws 165 amps at a voltage of 460 with a feeder ft. length of 190. The copper wire (75 degree C) size desired is #2/0, Which minimum size copper wire is permissible by code to use?

1/0

2/0

3/0

The motor draws 165 amps at a voltage of 460, and the desired copper wire size is #2/0. According to the code, the minimum size copper wire permissible to use is 2/0.

Explanation

The motor draws 165 amps at a voltage of 460, and the desired copper wire size is #2/0. According to the code, the minimum size copper wire permissible to use is 2/0.

69. The inspection fee for each nominal 20-ampere or less branch circuit, including fixtures, sockets, or receptacles, shall be $10.00 per branch circuit for the first 50 circuits? (13-20-370)

True

False

The given statement is true. According to the code (13-20-370), the inspection fee for each nominal 20-ampere or less branch circuit, including fixtures, sockets, or receptacles, is $10.00 per branch circuit for the first 50 circuits. This means that for the first 50 circuits, regardless of the number of fixtures, sockets, or receptacles, the fee will be $10.00 per circuit.

Explanation

The given statement is true. According to the code (13-20-370), the inspection fee for each nominal 20-ampere or less branch circuit, including fixtures, sockets, or receptacles, is $10.00 per branch circuit for the first 50 circuits. This means that for the first 50 circuits, regardless of the number of fixtures, sockets, or receptacles, the fee will be $10.00 per circuit.

70. Unless otherwise indicated torque requirements for motor control circuit device terminals shall be a minimum of, how many pounds per inches for screw-type pressure terminals used for 14 AWG and smaller copper conductors.

7

8

9

10

The correct answer is 7. This means that the torque requirements for motor control circuit device terminals should be a minimum of 7 pounds per inch for screw-type pressure terminals used for 14 AWG and smaller copper conductors.

Explanation

The correct answer is 7. This means that the torque requirements for motor control circuit device terminals should be a minimum of 7 pounds per inch for screw-type pressure terminals used for 14 AWG and smaller copper conductors.

71. Connecting lighting fixture wires to the branch-circuit conductors supplying the fixtures is not permitted?(18-27-402.10.)

True

False

The statement is false because connecting lighting fixture wires to the branch-circuit conductors supplying the fixtures is actually permitted. According to code 18-27-402.10, it is allowed to connect the fixture wires to the branch-circuit conductors. Therefore, the correct answer is false.

Explanation

The statement is false because connecting lighting fixture wires to the branch-circuit conductors supplying the fixtures is actually permitted. According to code 18-27-402.10, it is allowed to connect the fixture wires to the branch-circuit conductors. Therefore, the correct answer is false.

72. What are the minimum requirements for service-drop conductors?

No. 2 copper wire

No. 3 copper wire

No. 6 aluminum

The minimum requirements for service-drop conductors include No. 6 aluminum wire. This means that the conductors used for service drops should be made of No. 6 aluminum wire, which meets the necessary standards and specifications for this purpose.

Explanation

The minimum requirements for service-drop conductors include No. 6 aluminum wire. This means that the conductors used for service drops should be made of No. 6 aluminum wire, which meets the necessary standards and specifications for this purpose.

73. In new or remodeled buildings, complete and detailed electrical plans shall be required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Electrical heating systems with connected loads in excess of 5 kw (18-27-215.5.)

True

False

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before beginning work on electrical heating systems with connected loads exceeding 5 kW. This ensures that the electrical systems are properly designed and installed, meeting safety standards and regulations.

Explanation

In new or remodeled buildings, it is necessary to submit complete and detailed electrical plans to the Electrical Bureau before beginning work on electrical heating systems with connected loads exceeding 5 kW. This ensures that the electrical systems are properly designed and installed, meeting safety standards and regulations.

74. Other than purposes listed in Section 18-27-400.7, flexible cords and cables may run through dropped ceilings?

True

False

Flexible cords and cables should not be run through dropped ceilings unless they are specifically listed for that purpose in Section 18-27-400.7. This is because dropped ceilings are not designed to support the weight of these cords and cables, which can pose a safety hazard. Therefore, the correct answer is False.

Explanation

Flexible cords and cables should not be run through dropped ceilings unless they are specifically listed for that purpose in Section 18-27-400.7. This is because dropped ceilings are not designed to support the weight of these cords and cables, which can pose a safety hazard. Therefore, the correct answer is False.

75. The allowable ampacity for size #14 KF-2 fixture wires is 17?(Table 18-27-402.5.)

True

False

According to Table 18-27-402.5, the allowable ampacity for size #14 KF-2 fixture wires is 17. Therefore, the statement "The allowable ampacity for size #14 KF-2 fixture wires is 17" is true.

Explanation

According to Table 18-27-402.5, the allowable ampacity for size #14 KF-2 fixture wires is 17. Therefore, the statement "The allowable ampacity for size #14 KF-2 fixture wires is 17" is true.

76. In new buildings fire pump secondary power where Emergency System II is required if the normal building source is common to the Emergency System II auxiliary source and the primary fire pump service, no secondary power shall be required for the fire pump? (18-27-695.3.)

True

False

According to the given statement, if the normal building source is shared by the Emergency System II auxiliary source and the primary fire pump service, no secondary power is needed for the fire pump in new buildings. Therefore, the answer is true.

Explanation

According to the given statement, if the normal building source is shared by the Emergency System II auxiliary source and the primary fire pump service, no secondary power is needed for the fire pump in new buildings. Therefore, the answer is true.

77. What is the minimum Volt-Amperes per Square Foot of, General Lighting Load for an auditorium that, you can use?

1

2

3

The minimum Volt-Amperes per Square Foot of General Lighting Load for an auditorium is 1. This means that for every square foot of the auditorium, a minimum of 1 Volt-Ampere is required for the general lighting load.

Explanation

The minimum Volt-Amperes per Square Foot of General Lighting Load for an auditorium is 1. This means that for every square foot of the auditorium, a minimum of 1 Volt-Ampere is required for the general lighting load.

78. Maximum Circuit Length: As indicated on Table D5010-130, R. S. Means Electrical Cost Data Book, a 130 ampere load at 480 volts, 3 phase, 3 wire with No. 1 wire can be run a maximum of how many _____ L.F. and provide satisfactory operation?

555

655

755

According to Table D5010-130 in the R. S. Means Electrical Cost Data Book, a 130 ampere load at 480 volts, 3 phase, 3 wire with No. 1 wire can be run a maximum of 555 L.F. and provide satisfactory operation.

Explanation

According to Table D5010-130 in the R. S. Means Electrical Cost Data Book, a 130 ampere load at 480 volts, 3 phase, 3 wire with No. 1 wire can be run a maximum of 555 L.F. and provide satisfactory operation.

79. Type USE used for service laterals shall be permitted to emerge above ground outside at terminations in meter bases?(18-27-300.5(d).)

True

False

According to section 18-27-300.5(d), the use of service laterals with the type USE is allowed to emerge above ground outside at terminations in meter bases. Therefore, the statement is true.

Explanation

According to section 18-27-300.5(d), the use of service laterals with the type USE is allowed to emerge above ground outside at terminations in meter bases. Therefore, the statement is true.

80. The volt-amperes of outlets for heavy duty lamp holders shall be computed at a minimum of,

180

120

600

The correct answer is 600. This means that the volt-amperes of outlets for heavy duty lamp holders should be calculated at a minimum of 600. This indicates that the outlets need to be able to handle a power load of at least 600 volt-amperes, which is a measure of the total power consumed by the lamps. This requirement ensures that the outlets are capable of supplying enough power for heavy duty lamp holders.

Explanation

The correct answer is 600. This means that the volt-amperes of outlets for heavy duty lamp holders should be calculated at a minimum of 600. This indicates that the outlets need to be able to handle a power load of at least 600 volt-amperes, which is a measure of the total power consumed by the lamps. This requirement ensures that the outlets are capable of supplying enough power for heavy duty lamp holders.

81. Only for extensions of existing installations may concealed knob-and-tube wiring be installed with-out any special permission?(18-27-324.3.)

True

False

For extensions of existing installations, concealed knob-and-tube wiring may not be installed without any special permission.

Explanation

For extensions of existing installations, concealed knob-and-tube wiring may not be installed without any special permission.

82. What is the minimum Volt-Amperes per Square Foot of, General Lighting Load for, a Hospital that you can use?

2

3

3 1/2

The correct answer is 2. The minimum Volt-Amperes per Square Foot of General Lighting Load for a Hospital is 2. This means that for every square foot of space in a hospital, there should be a minimum of 2 Volt-Amperes of power allocated for general lighting purposes.

Explanation

The correct answer is 2. The minimum Volt-Amperes per Square Foot of General Lighting Load for a Hospital is 2. This means that for every square foot of space in a hospital, there should be a minimum of 2 Volt-Amperes of power allocated for general lighting purposes.

83. A motor draws 32 amps at a voltage of 230 with a feeder ft. length of 150. The copper wire (75 degree C) size desired is #8, Which minimum size copper wire is permissible by code to use?"

#8

#6

#4

The minimum size copper wire permissible by code to use in this scenario is #6. This is because the motor draws 32 amps, and according to code regulations, the wire size must be able to handle the current without overheating. The #6 wire is capable of carrying the required current safely, while the #8 wire would not be sufficient. The #4 wire, on the other hand, is larger than necessary for this particular situation.

Explanation

The minimum size copper wire permissible by code to use in this scenario is #6. This is because the motor draws 32 amps, and according to code regulations, the wire size must be able to handle the current without overheating. The #6 wire is capable of carrying the required current safely, while the #8 wire would not be sufficient. The #4 wire, on the other hand, is larger than necessary for this particular situation.

84. Each floor area of a building, dwelling unit, or other area involved shall be, computed from the interior wall dimensions to determine the total square footage for, service load calculations.

True

False

The given statement is false. The total square footage for service load calculations should be computed from the exterior wall dimensions, not the interior wall dimensions.

Explanation

The given statement is false. The total square footage for service load calculations should be computed from the exterior wall dimensions, not the interior wall dimensions.

85. In all occupancies, what is the minimum design load to include for, each general purpose outlets.

120 volt-amperes

180 volt-amperes

1500 volt-amperes

The minimum design load to include for each general purpose outlet in all occupancies is 180 volt-amperes. This means that the electrical system should be able to handle a load of at least 180 VA for each outlet. This ensures that there is enough power available for typical electrical devices and appliances that may be plugged into the outlets.

Explanation

The minimum design load to include for each general purpose outlet in all occupancies is 180 volt-amperes. This means that the electrical system should be able to handle a load of at least 180 VA for each outlet. This ensures that there is enough power available for typical electrical devices and appliances that may be plugged into the outlets.

86. Cable tray installations shall be limited to industrial establishments?(18-27-318.3.)

True

False

The statement is false because cable tray installations are not limited to industrial establishments. Cable trays are used in various settings, including commercial buildings, residential buildings, and even outdoor installations. Therefore, the correct answer is false.

Explanation

The statement is false because cable tray installations are not limited to industrial establishments. Cable trays are used in various settings, including commercial buildings, residential buildings, and even outdoor installations. Therefore, the correct answer is false.

87. Outlets serving switchboards, and switchgear frames in telephone exchanges need not be included, in minimum design load computations.

True

False

In minimum design load computations, outlets serving switchboards and switchgear frames in telephone exchanges do not need to be included. This is because these outlets are specific to the telephone exchange infrastructure and are not part of the general electrical load that is considered in the design calculations. Therefore, they can be excluded from the computation of the minimum design load.

Explanation

In minimum design load computations, outlets serving switchboards and switchgear frames in telephone exchanges do not need to be included. This is because these outlets are specific to the telephone exchange infrastructure and are not part of the general electrical load that is considered in the design calculations. Therefore, they can be excluded from the computation of the minimum design load.

88. What is the minimum Volt-Amperes per Square Foot of, General Lighting Load for a School that, you can use?

2

3

3 1/2

The minimum Volt-Amperes per Square Foot of General Lighting Load for a School that can be used is 3. This means that for every square foot of the school, there should be a minimum of 3 Volt-Amperes of lighting load. This requirement ensures that there is sufficient electrical capacity to meet the lighting needs of the school, providing adequate illumination for classrooms, hallways, and other areas.

Explanation

The minimum Volt-Amperes per Square Foot of General Lighting Load for a School that can be used is 3. This means that for every square foot of the school, there should be a minimum of 3 Volt-Amperes of lighting load. This requirement ensures that there is sufficient electrical capacity to meet the lighting needs of the school, providing adequate illumination for classrooms, hallways, and other areas.

89. Existing lighting fixtures and lighting outlets located less than 5 ft measured horizontally from the inside walls of a pool shall be at least 5 ft above the surface of the maximum water level?(18-27-680.5.)

True

False

The statement is true because according to the code 18-27-680.5, existing lighting fixtures and outlets near the pool walls must be at least 5 ft above the water level. This is to ensure safety and prevent any electrical hazards that could occur due to the proximity of the water.

Explanation

The statement is true because according to the code 18-27-680.5, existing lighting fixtures and outlets near the pool walls must be at least 5 ft above the water level. This is to ensure safety and prevent any electrical hazards that could occur due to the proximity of the water.

90. A motor draws 21amps at a voltage of 230 with a feeder ft. length of 160. The copper wire (75 degree C) size desired is #10, Which minimum size copper wire is permissible by code to use?"

#10

#8

#6

According to electrical code regulations, the minimum size copper wire permissible for a motor that draws 21 amps at 230 volts with a 160 ft. feeder length is #8. This wire size is determined by considering factors such as the current draw, voltage, and length of the feeder, as well as the temperature rating of the wire. The #8 wire is able to safely handle the current and voltage requirements while also accounting for any potential voltage drop over the length of the feeder.

Explanation

According to electrical code regulations, the minimum size copper wire permissible for a motor that draws 21 amps at 230 volts with a 160 ft. feeder length is #8. This wire size is determined by considering factors such as the current draw, voltage, and length of the feeder, as well as the temperature rating of the wire. The #8 wire is able to safely handle the current and voltage requirements while also accounting for any potential voltage drop over the length of the feeder.

91. A motor draws 21 amps at a voltage of 460 with a feeder ft. length of 190. The copper wire (75 degree C) size desired is #10, Which minimum size copper wire is permissible by code to use?

#10

#8

#6

The given question asks for the minimum permissible size of copper wire to use for a motor that draws 21 amps at a voltage of 460 with a feeder ft. length of 190. The desired wire size is #10, so the minimum permissible size would also be #10. Therefore, the correct answer is #10.

Explanation

The given question asks for the minimum permissible size of copper wire to use for a motor that draws 21 amps at a voltage of 460 with a feeder ft. length of 190. The desired wire size is #10, so the minimum permissible size would also be #10. Therefore, the correct answer is #10.

92. A motor draws 83 amps at a voltage of 460 with a feeder ft. length of 190. The copper wire (75 degree C) size desired is #3, what would the voltage drop be?"

5.9

7.2

8.0

The voltage drop can be calculated using the formula VD = (2 x K x I x L) / CM, where VD is the voltage drop, K is the resistance constant, I is the current, L is the length of the wire, and CM is the circular mils of the wire. Since the desired wire size is #3, which has a CM value of 52640, and the current is 83 amps, the voltage drop would be 7.2 volts.

Explanation

The voltage drop can be calculated using the formula VD = (2 x K x I x L) / CM, where VD is the voltage drop, K is the resistance constant, I is the current, L is the length of the wire, and CM is the circular mils of the wire. Since the desired wire size is #3, which has a CM value of 52640, and the current is 83 amps, the voltage drop would be 7.2 volts.

93. What is the primary provision of electricity to a six unit Multi-family dwelling building?

Service drop

Main disconnect

The primary provision of electricity to a six unit Multi-family dwelling building is through a service drop. A service drop refers to the overhead or underground wires that connect the utility's power lines to the building's electrical panel. This is the point where the utility company's responsibility ends, and the building owner's responsibility begins for distributing the electricity to individual units.

Explanation

The primary provision of electricity to a six unit Multi-family dwelling building is through a service drop. A service drop refers to the overhead or underground wires that connect the utility's power lines to the building's electrical panel. This is the point where the utility company's responsibility ends, and the building owner's responsibility begins for distributing the electricity to individual units.

94. The earth shall be used as the sole equipment grounding conductor or fault current path? (18-27-250.2.)

True

False

According to the given reference (18-27-250.2), the earth should not be used as the sole equipment grounding conductor or fault current path. This means that relying solely on the earth for grounding is not sufficient for ensuring electrical safety. Instead, proper equipment grounding conductors should be installed to provide a reliable path for fault currents. Therefore, the correct answer is False.

Explanation

According to the given reference (18-27-250.2), the earth should not be used as the sole equipment grounding conductor or fault current path. This means that relying solely on the earth for grounding is not sufficient for ensuring electrical safety. Instead, proper equipment grounding conductors should be installed to provide a reliable path for fault currents. Therefore, the correct answer is False.

95. The allowable ampacity for size #12 KF-2 fixture wires is 25? (Table 18-27-402.5.)

True

False

The correct answer is False because according to Table 18-27-402.5, the allowable ampacity for size #12 KF-2 fixture wires is 20, not 25.

Explanation

The correct answer is False because according to Table 18-27-402.5, the allowable ampacity for size #12 KF-2 fixture wires is 20, not 25.

96. The allowable ampacity for size #10 KF-2 fixture wires is 30? (Table 18-27-402.5.)

True

False

The correct answer is False because according to Table 18-27-402.5, the allowable ampacity for size #10 KF-2 fixture wires is not mentioned.

Explanation

The correct answer is False because according to Table 18-27-402.5, the allowable ampacity for size #10 KF-2 fixture wires is not mentioned.

97. The unit lighting load that is specified for, occupancy use in the code book constitutes the required lighting load for each square foot (0.093 mz) of floor area.

True

False

The statement is false because the unit lighting load specified in the code book is not the required lighting load for each square foot of floor area. The unit lighting load is a standard value used for calculations, but the actual required lighting load may vary depending on factors such as the type of occupancy, the purpose of the space, and local regulations.

Explanation

The statement is false because the unit lighting load specified in the code book is not the required lighting load for each square foot of floor area. The unit lighting load is a standard value used for calculations, but the actual required lighting load may vary depending on factors such as the type of occupancy, the purpose of the space, and local regulations.

98. Instantaneous Trip (as applied to circuit breakers) is a qualifying term indicating that there is purposely introduced a delay in the tripping action of the circuit breaker, which delay decreases as the magnitude of the current increases? (18-27-100)

True

False

The explanation for the given answer "False" is that the statement is incorrect. Instantaneous Trip, as applied to circuit breakers, means that there is no intentional delay in the tripping action. In fact, an instantaneous trip circuit breaker is designed to trip immediately when the current exceeds a certain threshold, regardless of the magnitude of the current. Therefore, the delay in tripping action does not decrease as the current increases.

Explanation

The explanation for the given answer "False" is that the statement is incorrect. Instantaneous Trip, as applied to circuit breakers, means that there is no intentional delay in the tripping action. In fact, an instantaneous trip circuit breaker is designed to trip immediately when the current exceeds a certain threshold, regardless of the magnitude of the current. Therefore, the delay in tripping action does not decrease as the current increases.

99. The code definition of Cutout Box means an enclosure designed for recess mounting? (18-27-100)

True

False

The code definition of Cutout Box does not mean an enclosure designed for recess mounting. Therefore, the correct answer is False.

Explanation

The code definition of Cutout Box does not mean an enclosure designed for recess mounting. Therefore, the correct answer is False.

100. In Chicago, all electrical installations must be performed by a licensed electrician.

True

False

The Chicago Electrical Code requires that all electrical work be performed by licensed electricians to ensure safety and compliance with electrical codes. This helps protect individuals and property from potential electrical hazards and ensures that electrical installations meet the city's standards.

Explanation

The Chicago Electrical Code requires that all electrical work be performed by licensed electricians to ensure safety and compliance with electrical codes. This helps protect individuals and property from potential electrical hazards and ensures that electrical installations meet the city's standards.

101. Fixture wires shall not be smaller than No. 16?(18-27-402.6.)

True

False

Fixture wires shall not be smaller than No. 16 is a false statement. According to code 18-27-402.6, fixture wires can be smaller than No. 16.

Explanation

Fixture wires shall not be smaller than No. 16 is a false statement. According to code 18-27-402.6, fixture wires can be smaller than No. 16.

102. In new or remodeled buildings, complete and detailed electrical plans shall be required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Commercial and/or industrial-type (200 amp, 120/240 Volt, 1P, 3W service) occupancies one story (18-27-215.5.)

True

False

In new or remodeled buildings, complete and detailed electrical plans are not required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Commercial and/or industrial-type (200 amp, 120/240 Volt, 1P, 3W service) occupancies one story (18-27-215.5.). Therefore, the statement is false.

Explanation

In new or remodeled buildings, complete and detailed electrical plans are not required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Commercial and/or industrial-type (200 amp, 120/240 Volt, 1P, 3W service) occupancies one story (18-27-215.5.). Therefore, the statement is false.

103. For permanently connected appliances rated at not over 300 volt-amperes or 1/8 horsepower, the branch-circuit over current device shall not be permitted to serve as the disconnecting means?(18-27-422.31.)

True

False

The branch-circuit over current device is not allowed to serve as the disconnecting means for permanently connected appliances rated at not over 300 volt-amperes or 1/8 horsepower. This means that a separate disconnecting means must be provided for these appliances, and the branch-circuit over current device cannot be used for that purpose. Therefore, the statement is false.

Explanation

The branch-circuit over current device is not allowed to serve as the disconnecting means for permanently connected appliances rated at not over 300 volt-amperes or 1/8 horsepower. This means that a separate disconnecting means must be provided for these appliances, and the branch-circuit over current device cannot be used for that purpose. Therefore, the statement is false.

104. Where a permanently installed pool is installed at a dwelling unit(s), at least two 125-volt 15- or 20-ampere receptacle on a general-purpose branch circuit shall be located a minimum of 5 ft from and not more than 10 ft from the inside wall of the pool? (18-27-680.5.)

True

False

According to the given information, where a permanently installed pool is installed at a dwelling unit, at least two 125-volt 15- or 20-ampere receptacles on a general-purpose branch circuit should be located a minimum of 5 ft from and not more than 10 ft from the inside wall of the pool. Therefore, the correct answer should be True. However, the given answer is False, which contradicts the information provided.

Explanation

According to the given information, where a permanently installed pool is installed at a dwelling unit, at least two 125-volt 15- or 20-ampere receptacles on a general-purpose branch circuit should be located a minimum of 5 ft from and not more than 10 ft from the inside wall of the pool. Therefore, the correct answer should be True. However, the given answer is False, which contradicts the information provided.

105. A motor draws 85 amps at a voltage of 230 with a feeder ft. length of 160. The copper wire (75 degree C) size desired is #3, Which minimum size copper wire is permissible by code to use?

3

2

1

The correct answer is 3 because according to the given information, the motor draws 85 amps at a voltage of 230 with a feeder ft. length of 160. The desired copper wire size is #3. The National Electrical Code specifies that the minimum size of copper wire to be used should be based on the ampacity requirements, and in this case, a #3 copper wire is sufficient to handle the 85 amp load.

Explanation

The correct answer is 3 because according to the given information, the motor draws 85 amps at a voltage of 230 with a feeder ft. length of 160. The desired copper wire size is #3. The National Electrical Code specifies that the minimum size of copper wire to be used should be based on the ampacity requirements, and in this case, a #3 copper wire is sufficient to handle the 85 amp load.

106. A motor draws 47 amps at a voltage of 460 with a feeder ft. length of 190. The copper wire (75 degree C) size desired is #8, Which minimum size copper wire is permissible by code to use?

#8

#6

#4

The given information states that the motor draws 47 amps at a voltage of 460, with a feeder ft. length of 190. The desired copper wire size is #8. According to the code, the minimum size copper wire permissible to use is #8. Therefore, the correct answer is #8.

Explanation

The given information states that the motor draws 47 amps at a voltage of 460, with a feeder ft. length of 190. The desired copper wire size is #8. According to the code, the minimum size copper wire permissible to use is #8. Therefore, the correct answer is #8.

107. Additional building services, with a supply voltage of 600 volts or less, are permitted when the capacity requirements are in excess of how many amperes?

2000

3000

4000

Additional building services with a supply voltage of 600 volts or less are allowed when the capacity requirements exceed 3000 amperes. This means that if the capacity needed for the building services, such as electrical systems or equipment, is greater than 3000 amperes, it is permissible to have additional services.

Explanation

Additional building services with a supply voltage of 600 volts or less are allowed when the capacity requirements exceed 3000 amperes. This means that if the capacity needed for the building services, such as electrical systems or equipment, is greater than 3000 amperes, it is permissible to have additional services.

108. The code definition of Accessible (as applied to equipment) means admitting close approach: but guarded by locked doors, elevation, or other effective means?(18-27-100)

True

False

The code definition of Accessible (as applied to equipment) does not mean admitting close approach, but rather means that access to the equipment is restricted by locked doors, elevation, or other effective means. Therefore, the correct answer is False.

Explanation

The code definition of Accessible (as applied to equipment) does not mean admitting close approach, but rather means that access to the equipment is restricted by locked doors, elevation, or other effective means. Therefore, the correct answer is False.

109. Installation of solid aluminum conductors is not permitted?(18-27-310.14.)

True

False

The statement is false because the installation of solid aluminum conductors is permitted according to the specified code (18-27-310.14).

Explanation

The statement is false because the installation of solid aluminum conductors is permitted according to the specified code (18-27-310.14).

110. In new or remodeled buildings, complete and detailed electrical plans shall be required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Multi-family dwelling-type (less than 400 amps services) occupancies two stories in height (18-27-215.5.)

True

False

In new or remodeled buildings, complete and detailed electrical plans are not required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Multi-family dwelling-type (less than 400 amps services) occupancies two stories in height (18-27-215.5).

Explanation

In new or remodeled buildings, complete and detailed electrical plans are not required to be submitted to and reviewed by the Electrical Bureau prior to the start of work on Multi-family dwelling-type (less than 400 amps services) occupancies two stories in height (18-27-215.5).

111. Inverse Time (as applied to circuit breakers) is a qualifying term indicating that the circuit breaker can be set to trip at various values of current, time, or both, within a predetermined range?(18-27-100)

True

False

The explanation for the correct answer is that the statement is incorrect. Inverse Time does not indicate that the circuit breaker can be set to trip at various values of current, time, or both within a predetermined range. Inverse Time is a characteristic of circuit breakers where the tripping time decreases as the current increases.

Explanation

The explanation for the correct answer is that the statement is incorrect. Inverse Time does not indicate that the circuit breaker can be set to trip at various values of current, time, or both within a predetermined range. Inverse Time is a characteristic of circuit breakers where the tripping time decreases as the current increases.

112. What is the line current drawn to a 3Ø generator that is delta-connected to a balanced three-wire, 20 KVA, 240 V, 3Ø load with a power factor of one? Assume IL = W

48.1

104.3

83.3

144.3

The line current drawn to a delta-connected 3Ø generator can be calculated using the formula IL = S / (√3 * VL), where S is the apparent power and VL is the line voltage. In this case, the apparent power is 20 KVA and the line voltage is 240 V. Plugging in these values into the formula, we get IL = 20,000 / (√3 * 240) = 48.1. Therefore, the line current drawn to the generator is 48.1.

Explanation

The line current drawn to a delta-connected 3Ø generator can be calculated using the formula IL = S / (√3 * VL), where S is the apparent power and VL is the line voltage. In this case, the apparent power is 20 KVA and the line voltage is 240 V. Plugging in these values into the formula, we get IL = 20,000 / (√3 * 240) = 48.1. Therefore, the line current drawn to the generator is 48.1.

113. What is the ampacity for a type HPD No. 14 flexible cord with four current-carrying conductors?

20 amperes

17 amperes

16 amperes

14 amperes

The ampacity for a type HPD No. 14 flexible cord with four current-carrying conductors is 16 amperes. The ampacity refers to the maximum amount of current that a conductor or cable can safely carry without exceeding its temperature rating. In this case, the type HPD No. 14 flexible cord is designed to handle a maximum of 16 amperes of current when there are four current-carrying conductors present.

Explanation

The ampacity for a type HPD No. 14 flexible cord with four current-carrying conductors is 16 amperes. The ampacity refers to the maximum amount of current that a conductor or cable can safely carry without exceeding its temperature rating. In this case, the type HPD No. 14 flexible cord is designed to handle a maximum of 16 amperes of current when there are four current-carrying conductors present.

114. Service-entrance cable types SE and USE shall be permitted for existing dwelling unit-type occupancies consisting of not more than 2 dwelling units?(18-27-338.2.)

True

False

The given statement is false. According to section 338.2 of the code, service-entrance cable types SE and USE are not permitted for existing dwelling unit-type occupancies consisting of more than 2 dwelling units. Therefore, the statement is incorrect.

Explanation

The given statement is false. According to section 338.2 of the code, service-entrance cable types SE and USE are not permitted for existing dwelling unit-type occupancies consisting of more than 2 dwelling units. Therefore, the statement is incorrect.

115. The inspection fees for, a 100 amp electrical service is $50.00? (13-20-480)

True

False

The given statement is false because the inspection fees for a 100 amp electrical service is not $50.00.

Explanation

The given statement is false because the inspection fees for a 100 amp electrical service is not $50.00.

116. Electrically conductive materials, such as structural steel members, that are unlikely to become energized no bonding is required?(18-27-250.2.)

True

False

Electrically conductive materials like structural steel members are unlikely to become energized, meaning they are not prone to carrying an electrical current. Therefore, bonding, which is the process of connecting conductive materials to prevent differences in electrical potential, is not necessary in this case. Hence, the statement is true.

Explanation

Electrically conductive materials like structural steel members are unlikely to become energized, meaning they are not prone to carrying an electrical current. Therefore, bonding, which is the process of connecting conductive materials to prevent differences in electrical potential, is not necessary in this case. Hence, the statement is true.

117. If the use of multiple grounding connections results in an objectionable flow of current, only one of the following alterations shall be permitted to be made? (1) Discontinue one or more but not all of such grounding connections. (2) Change the locations of the grounding connections? (18-27-250.6.)

True

False

The statement is false. According to the given information, if the use of multiple grounding connections results in an objectionable flow of current, multiple alterations are allowed. One option is to discontinue one or more but not all of the grounding connections. Another option is to change the locations of the grounding connections. Therefore, more than one alteration is permitted in this situation.

Explanation

The statement is false. According to the given information, if the use of multiple grounding connections results in an objectionable flow of current, multiple alterations are allowed. One option is to discontinue one or more but not all of the grounding connections. Another option is to change the locations of the grounding connections. Therefore, more than one alteration is permitted in this situation.

118. Other than receptacle(s) that provides power for a water-pump motor(s) all other receptacles on the property shall be located at least 5 ft from the inside walls of a pool? (18-27-680.5.)

True

False

The statement is false because according to the code (18-27-680.5), all receptacles on the property, including those providing power for a water-pump motor, must be located at least 5 ft from the inside walls of a pool.

Explanation

The statement is false because according to the code (18-27-680.5), all receptacles on the property, including those providing power for a water-pump motor, must be located at least 5 ft from the inside walls of a pool.

119. The code definition of Demand Factor means the ratio of the minimum demand of a system, or part of a system, to the total connected load of a system or the part of the system under consideration?(18-27-100)

True

False

The code definition of Demand Factor does not mean the ratio of the minimum demand of a system to the total connected load of a system. The Demand Factor actually refers to the ratio of the maximum expected demand to the total connected load. Therefore, the correct answer is False.

Explanation

The code definition of Demand Factor does not mean the ratio of the minimum demand of a system to the total connected load of a system. The Demand Factor actually refers to the ratio of the maximum expected demand to the total connected load. Therefore, the correct answer is False.

120. Ground-fault circuit interrupters for swimming pools other than receptacle types can be only self-contained units such as the circuit-breaker type?(18-27-680.5.)

True

False

According to the given code reference (18-27-680.5), ground-fault circuit interrupters for swimming pools can be either self-contained units or receptacle types. Therefore, the statement that only self-contained units such as the circuit-breaker type can be used is false.

Explanation

According to the given code reference (18-27-680.5), ground-fault circuit interrupters for swimming pools can be either self-contained units or receptacle types. Therefore, the statement that only self-contained units such as the circuit-breaker type can be used is false.

121. Installation of stranded aluminum conductors No. 8 through 1000 kcmil marked as Type RUW, XHHW, THW, THHW, THWN, THHN, service-entrance Type SE Style U and SE Style R made of an AA-8000 series electrical grade aluminum alloy conductor material is permitted?(18-27-310.14.)

True

False

The installation of stranded aluminum conductors marked as Type RUW, XHHW, THW, THHW, THWN, THHN, service-entrance Type SE Style U and SE Style R made of an AA-8000 series electrical grade aluminum alloy conductor material is not permitted according to the given code reference (18-27-310.14). Therefore, the correct answer is False.

Explanation

The installation of stranded aluminum conductors marked as Type RUW, XHHW, THW, THHW, THWN, THHN, service-entrance Type SE Style U and SE Style R made of an AA-8000 series electrical grade aluminum alloy conductor material is not permitted according to the given code reference (18-27-310.14). Therefore, the correct answer is False.

122. Excluding surge arresters, the grounding of electrical systems, circuit conductors, and conductive noncurrent-carrying materials and equipment shall be installed and arranged in a manner that will prevent an objectionable flow of current over the grounding conductors or grounding paths? (18-27-250.6.)

True

False

The grounding of electrical systems, circuit conductors, and conductive noncurrent-carrying materials and equipment should be installed and arranged in a manner that will prevent an objectionable flow of current over the grounding conductors or grounding paths. This means that surge arresters should also be included in the grounding system to prevent any excessive flow of current. Therefore, the statement that "excluding surge arresters" is false.

Explanation

The grounding of electrical systems, circuit conductors, and conductive noncurrent-carrying materials and equipment should be installed and arranged in a manner that will prevent an objectionable flow of current over the grounding conductors or grounding paths. This means that surge arresters should also be included in the grounding system to prevent any excessive flow of current. Therefore, the statement that "excluding surge arresters" is false.

123. The connection between the grounding terminal of a grounding-type receptacle and a grounded box is accomplished by using?

A grounded circuit conductor

An equipment bonding jumper

An ungrounded circuit conductor

A grounding conductor

The connection between the grounding terminal of a grounding-type receptacle and a grounded box is accomplished by using an ungrounded circuit conductor. This conductor is used to connect the grounding terminal of the receptacle to the grounded box, providing a path for electrical current in the event of a fault. This helps to ensure that any stray electrical current is safely directed to the ground, protecting both the electrical system and individuals from potential harm.

Explanation

The connection between the grounding terminal of a grounding-type receptacle and a grounded box is accomplished by using an ungrounded circuit conductor. This conductor is used to connect the grounding terminal of the receptacle to the grounded box, providing a path for electrical current in the event of a fault. This helps to ensure that any stray electrical current is safely directed to the ground, protecting both the electrical system and individuals from potential harm.