Chicago Electrical Exam

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Willylouiser
W
Willylouiser
Community Contributor
Quizzes Created: 1 | Total Attempts: 2,188
| Attempts: 2,188
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/123 Questions

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

    • True
    • False
Please wait...
About This Quiz

This Chicago Electrical Exam assesses knowledge on electrical engineering principles, focusing on voltage drop calculations and code-compliant wire sizing for motors. It's designed for professionals seeking licensing or certification in Chicago.

Chicago Electrical Exam - Quiz

Quiz Preview

  • 2. 

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

    • True

    • False

    Correct Answer
    A. 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.

    Rate this question:

  • 3. 

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

    • Copper

    • Aluminum

    • Copper clad

    • Silver plated.

    Correct Answer
    A. Copper
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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".

    Rate this question:

  • 7. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 9. 

    Current-carrying capacity expressed in amperes means ampacity?

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 10. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 11. 

    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

    Correct Answer
    A. 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.

    Rate this question:

  • 12. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 13. 

    (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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 14. 

    Direct current is electrical current which flows in one direction only

    • True

    • False

    Correct Answer
    A. 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.

    Rate this question:

  • 15. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. Readily accessible location with-in 5 ft of service entrance to building
    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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 18. 

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

    • True

    • False

    Correct Answer
    A. 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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 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

    Correct Answer
    A. All of these
    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.

    Rate this question:

  • 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

    Correct Answer
    A. All of these
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 24. 

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

    • True

    • False

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

    Rate this question:

  • 25. 

    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

    Correct Answer
    A. 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 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.

    Rate this question:

  • 26. 

    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

    Correct Answer
    A. 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.

    Rate this question:

  • 27. 

    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

    Correct Answer
    A. 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.

    Rate this question:

  • 28. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 29. 

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

    • True

    • False

    Correct Answer
    A. 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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 34. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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 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.

    Rate this question:

  • 36. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 38. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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.

    Correct Answer
    A. 3-Ft
    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.

    Rate this question:

  • 40. 

    Two conductor NM cables cannot be stapled on edge.

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. True
    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.

    Rate this question:

  • 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

    Correct Answer
    A. 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.

    Rate this question:

  • 43. 

    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.

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

    Rate this question:

  • 44. 

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

    • True

    • False

    Correct Answer
    A. True
    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.

    Rate this question:

  • 45. 

    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.

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

    Rate this question:

  • 46. 

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

    • True

    • False

    Correct Answer
    A. 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.

    Rate this question:

  • 47. 

    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

    Correct Answer
    A. 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.

    Rate this question:

  • 48. 

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

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The computed floor area of dwelling units does not include open or enclosed porches.

    Rate this question:

  • 49. 

    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

    Correct Answer
    A. Appliance rated amperes
    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.

    Rate this question:

Quiz Review Timeline (Updated): Jan 21, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 21, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 30, 2010
    Quiz Created by
    Willylouiser

Recent Quizzes

Basic Electrical Engineering Quiz: Test! Basic Electrical Engineering Quiz: Test!
Electrical Engineering Basics Quiz: Trivia! Electrical Engineering Basics Quiz: Trivia!
Skill Innovation & Employability Program Quiz Skill Innovation & Employability Program Quiz
A Short Electrical Engineering Quiz! A Short Electrical Engineering Quiz!
Electrical Fundamentals Quiz Exam! Electrical Fundamentals Quiz Exam!
ALE Day 2 BU-BT Part 2 of 5 ALE Day 2 BU-BT Part 2 of 5
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.