RCDD Chapter 9 Power Distribution

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  • 1/107 Questions

    Load characteristics are:

    • Resistance
    • Inductance
    • Capacitance
    • All of the above
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RCDD Quizzes & Trivia
About This Quiz

This RCDD Chapter 9 Power Distribution quiz assesses knowledge on DC power systems, including characteristics of direct current and power distribution types. It evaluates understanding of system redundancy, unidirectional current flow, and power conditioning.

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  • 2. 

    For Integrated Services Digital Network (ISDN) power distribution over balanced twisted pair, what are the three main factors to consider for distance limitations:

    • Allowable voltage drop between the power source and the terminal

    • Size (wire gauge) of the pair

    • Amount of power required by the terminal

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The three main factors to consider for distance limitations in ISDN power distribution over balanced twisted pair are the allowable voltage drop between the power source and the terminal, the size (wire gauge) of the pair, and the amount of power required by the terminal. All of these factors play a crucial role in determining the maximum distance over which power can be distributed effectively.

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  • 3. 

    Electrical shock can cause:

    • Your hair to stand up

    • You to travel through time

    • Injury and death

    • The winning lottery numbers to appear before your eyes

    Correct Answer
    A. Injury and death
    Explanation
    Electrical shock can cause injury and death. When a person comes into contact with an electrical current, it can disrupt the normal functioning of the body's electrical system, leading to various injuries. The severity of the injuries depends on factors such as the voltage and duration of the shock. Electrical shock can cause burns, muscle contractions, cardiac arrest, and damage to internal organs. In some cases, the shock can be fatal, resulting in death. It is important to take precautions and avoid contact with electrical sources to prevent such injuries.

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  • 4. 

    For Integrated Services Digital Network (ISDN) power distribution over balanced twisted pair, Which power method is most suitable for a campus-type installation or where there is a concentration of terminals to be powered in certain locations

    • Bulk power method

    • Distributed power method

    • Local or desktop power method

    Correct Answer
    A. Distributed power method
    Explanation
    The distributed power method is most suitable for a campus-type installation or where there is a concentration of terminals to be powered in certain locations. This method involves distributing power from a central power source to multiple locations, allowing for efficient power distribution and reducing the need for long power cables. It is particularly beneficial in situations where there are multiple terminals in close proximity to each other, as it eliminates the need for individual power sources at each terminal.

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  • 5. 

    One kWh is equal to:

    • 10 watt hours

    • 100 watt hours

    • 1000 watt hours

    • 10000 watt hours

    Correct Answer
    A. 1000 watt hours
    Explanation
    One kilowatt-hour (kWh) is equal to 1000 watt-hours. This is because the prefix "kilo" represents a factor of 1000. Therefore, multiplying 1 kilowatt by 1 hour gives us 1000 watt-hours.

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  • 6. 

    Frequency (e.g. number of sine wave cycles in one second) is typically ________ depending on the country.

    • 30 to 40 Hz

    • 45 to 60 Hz

    • 50 to 60 Hz

    • 55 to 75 Hz

    Correct Answer
    A. 50 to 60 Hz
    Explanation
    The frequency of sine wave cycles in one second is typically 50 to 60 Hz depending on the country. This range is commonly used for alternating current (AC) power systems in many countries around the world. Different countries may have slight variations in their frequency standards, but most fall within this range.

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  • 7. 

    What is a unit of mechanical power

    • Decible

    • Watt

    • Ohm

    • Horsepower

    Correct Answer
    A. Horsepower
    Explanation
    A unit of mechanical power is a measure of the rate at which work is done or energy is transferred in a mechanical system. The decibel (dB) is a unit used to measure the intensity of sound, not mechanical power. The watt (W) is the SI unit of power, but it is a general unit used for all types of power, not specifically mechanical power. The ohm (Ω) is a unit of electrical resistance, not power. Horsepower (hp) is a unit commonly used to measure mechanical power, especially in the context of engines and motors.

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  • 8. 

    The most common single-phase service is:

    • 120/240 volts

    • 240/280 volts

    • 480 volts

    Correct Answer
    A. 120/240 volts
    Explanation
    The most common single-phase service is 120/240 volts. This is because it is the standard voltage used in residential homes in many countries, including the United States. It provides a balance between sufficient power for household appliances and safety for everyday use. The 120 volts is used for lighting and smaller appliances, while the 240 volts is used for larger appliances such as air conditioners, ovens, and dryers.

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  • 9. 

    For Integrated Services Digital Network (ISDN) power distribution over balanced twisted pair, what are three power methods:

    • Bulk power

    • Distributed power

    • Local or desktop power

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above". This means that all three power methods - bulk power, distributed power, and local or desktop power - are used for Integrated Services Digital Network (ISDN) power distribution over balanced twisted pair. This indicates that ISDN can be powered using any of these methods depending on the specific requirements and circumstances.

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  • 10. 

    With reference to voltage and current fluctuations, what is a short duration (usually subcycle) rapid increase in voltage or current that can often be up to thousands of volts in amplitude. The duration is less than half cycle (8.3 milliseconds) of the normal voltage waveform.

    • Swell

    • Transients/Surge

    • Sag

    • Overvoltage

    • Interruption

    Correct Answer
    A. Transients/Surge
    Explanation
    A transient/surge refers to a short duration rapid increase in voltage or current that can reach amplitudes of thousands of volts. It occurs within a duration of less than half a cycle of the normal voltage waveform, which is typically less than 8.3 milliseconds. This sudden increase in voltage or current can cause damage to electrical equipment if not properly protected against.

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  • 11. 

    Utility companies charge for power in ___________.

    • Megawatt hours (MWh)

    • Watt hours (Wh)

    • Kilowatt hours (kWh)

    • Gigawatt hours (GWh)

    Correct Answer
    A. Kilowatt hours (kWh)
    Explanation
    Utility companies charge for power in kilowatt hours (kWh) because it is a commonly used unit to measure electricity consumption. A kilowatt hour represents the amount of energy consumed by using one kilowatt of power for one hour. This unit is practical for billing purposes as it accurately reflects the amount of electricity used by the consumer.

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  • 12. 

    Stranded conductors generally have a slightly ___________ outside diameter than the corresponding solid conductor diameter due to the additional cross-sectional area between the strands.

    • Larger

    • Smaller

    Correct Answer
    A. Larger
    Explanation
    Stranded conductors have a larger outside diameter than the corresponding solid conductor diameter because the strands create additional cross-sectional area. This means that more material is used in the construction of the stranded conductor, resulting in a larger overall diameter.

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  • 13. 

    If the voltage sine wave starts before the current sine wave (inductive circuit) then the current wave is said to:

    • Be in phase

    • Lead the voltage sine wave

    • Lage the voltage sine wave

    Correct Answer
    A. Lage the voltage sine wave
    Explanation
    When the voltage sine wave starts before the current sine wave in an inductive circuit, the current wave is said to "Lage" the voltage sine wave. This means that the current lags behind the voltage waveform in time. This behavior is typical in inductive circuits where the flow of current is delayed due to the presence of inductance.

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  • 14. 

    What type of transformer has no electrical connection between the primary and secondary.

    • Shielded transformer

    • Inductive transformer

    • Isolation transformer

    • Power transformer

    Correct Answer
    A. Isolation transformer
    Explanation
    An isolation transformer is a type of transformer that has no electrical connection between the primary and secondary windings. It is designed to provide electrical isolation between the input and output, thereby preventing the transfer of electrical noise or voltage spikes from one circuit to another. This makes it useful in applications where safety or signal integrity is important, such as in medical equipment or audio systems.

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  • 15. 

    Direct current (DC) is ___________, and unlike AC current does not change polarity.

    • Unidirectional

    • Bidirectional

    • Omnidirectional

    Correct Answer
    A. Unidirectional
    Explanation
    Direct current (DC) refers to the flow of electric charge in one direction only. Unlike alternating current (AC), which periodically changes direction, DC maintains a constant polarity. Therefore, the correct answer is "Unidirectional."

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  • 16. 

    What equipment along with electronic ballasts generally cause harmonics?

    • Transmitting equipment

    • Solid-state equipment

    • Recieving equipment

    • Grounding equipment

    Correct Answer
    A. Solid-state equipment
    Explanation
    Solid-state equipment is the correct answer because it generally causes harmonics when used along with electronic ballasts. Solid-state equipment, such as computers, televisions, and electronic devices, use semiconductor components that can generate harmonics when operated. These harmonics can distort the power waveform and cause issues in the electrical system, leading to potential problems in other equipment connected to the same power supply. Therefore, solid-state equipment is known to be a common source of harmonics in electrical systems.

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  • 17. 

    The electrical system between the serving utility and the customer's site is known as the ________ system.

    • Development

    • Dispertion

    • Variation

    • Distribution

    Correct Answer
    A. Distribution
    Explanation
    The electrical system between the serving utility and the customer's site is known as the distribution system. This system is responsible for delivering electricity from the utility to the end-users, such as residential, commercial, and industrial customers. It includes transformers, power lines, substations, and other infrastructure necessary to distribute electricity safely and efficiently. The distribution system plays a crucial role in ensuring that electricity reaches the customers reliably and at the desired voltage levels.

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  • 18. 

    What are the two types of power board distribution

    • Centralized distribution

    • Bulk distribution

    • Decentralized distribution

    • Campus distribution

    Correct Answer(s)
    A. Centralized distribution
    A. Decentralized distribution
    Explanation
    The two types of power board distribution are centralized distribution and decentralized distribution. Centralized distribution refers to a system where power is distributed from a central location to multiple points. Decentralized distribution, on the other hand, involves distributing power from multiple sources to different locations. Both types of distribution have their own advantages and disadvantages depending on the specific needs and requirements of the situation.

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  • 19. 

    What type of circuit do you have is current leads voltage

    • Capacative

    • Resistive

    • Inductive

    Correct Answer
    A. Capacative
    Explanation
    A capacitive circuit is one where the current leads the voltage. In a capacitive circuit, the current flow is ahead of the voltage waveform, meaning that the current reaches its peak before the voltage does. This is because in a capacitive circuit, the capacitor stores energy in an electric field and releases it back into the circuit, causing the current to lead the voltage.

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  • 20. 

    Do not mix aluminum terminating devices with copper cables.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Mixing aluminum terminating devices with copper cables can lead to compatibility issues and potential hazards. Aluminum and copper have different electrical properties and can cause galvanic corrosion when they come into contact with each other. This corrosion can weaken the connection and increase resistance, leading to overheating and potential fire hazards. Therefore, it is important to use compatible materials when terminating aluminum or copper cables to ensure safe and efficient electrical connections.

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  • 21. 

    When using the American Wire Gauge (AWG) numbering system, smaller numbers denote _______ wires.

    • Larger

    • Smaller

    Correct Answer
    A. Larger
    Explanation
    In the American Wire Gauge (AWG) numbering system, smaller numbers are used to denote larger wires. This means that as the AWG number increases, the wire size decreases. Therefore, larger numbers in AWG indicate smaller wires.

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  • 22. 

    DC systems have to include an additional rectifier/charger if redundancy is required.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    In DC systems, redundancy refers to having a backup or duplicate component in case of failure. In order to achieve redundancy, an additional rectifier/charger is required. This additional component ensures that there is a backup power source available in case the primary rectifier/charger fails. Therefore, the statement is true.

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  • 23. 

    Direct current is:

    • Omnidirectional

    • Unidirectional

    • Bidirectional

    • Multidirectional

    Correct Answer
    A. Unidirectional
    Explanation
    Direct current refers to the flow of electric charge in one direction only. Unlike alternating current, which constantly changes direction, direct current flows steadily and consistently in a single direction. Therefore, the correct answer is "Unidirectional."

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  • 24. 

    Direct current changes polarity

    • True

    • False

    Correct Answer
    A. False
    Explanation
    does not change polarity

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  • 25. 

    With reference to voltage and current fluctuations, what is an increase in the nominal voltage or current lasting from 0.5 cycles to one minute?

    • Sag

    • Overvoltage

    • Swell

    • Transient/Surge

    • Interruption

    Correct Answer
    A. Swell
    Explanation
    An increase in the nominal voltage or current lasting from 0.5 cycles to one minute is referred to as a "swell." Swells are temporary increases in voltage or current that can occur due to various reasons such as sudden changes in load or faults in the power system. Swells can potentially damage electrical equipment and appliances if they exceed the operating limits.

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  • 26. 

    A method of connection for primary or secondary windings of a three-phase tranformer bank in which similar ends of each phase windings are connected together at a common point is known as:

    • Delta

    • Wye

    • Phase joining

    • Patch

    Correct Answer
    A. Wye
    Explanation
    The method of connection described in the question is known as the Wye connection. In a Wye connection, the similar ends of each phase winding are connected together at a common point, forming a Y-shaped configuration. This type of connection is commonly used in three-phase transformer banks and allows for a balanced distribution of power between the phases.

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  • 27. 

    The average current that is required to fully recharge a discharged battery depends upon the amount of:

    • Load current that is removed from the battery

    • Time the battery is discharged

    • Recharge time required

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The average current required to fully recharge a discharged battery depends on the amount of load current that is removed from the battery, the time the battery is discharged, and the recharge time required. All of these factors affect the overall energy that needs to be restored to the battery, thus influencing the average current needed for recharging.

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  • 28. 

    One watt equals how many Btu.

    • 2.321

    • 3.413

    • 4.321

    • 746

    Correct Answer
    A. 3.413
    Explanation
    One watt is equal to 3.413 Btu. This conversion factor is used to convert between the units of power (watt) and energy (Btu). The Btu (British thermal unit) is a unit of energy commonly used in the United States, while the watt is the SI unit of power. Therefore, to convert from watt to Btu, we multiply the value in watt by 3.413.

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  • 29. 

    What adjusts the line voltage to the load up or down, as necessary.

    • Voltage amplifier

    • Voltage conditioner

    • Voltage regulator

    • Voltage filter

    Correct Answer
    A. Voltage regulator
    Explanation
    A voltage regulator is a device that adjusts the line voltage to the load up or down as necessary. It ensures that the voltage supplied to the load remains constant despite any fluctuations in the input voltage. This is achieved by using electronic circuits that monitor the input voltage and make the necessary adjustments to maintain a stable output voltage.

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  • 30. 

    The harmonics of the sine wave are multiples of the basic __________. (e.g. the third harmonic of 60 Hz power is 180 Hz)

    • Voltage

    • Amplitude

    • Frequency

    • Current

    Correct Answer
    A. Frequency
    Explanation
    The harmonics of a sine wave are multiples of the basic frequency. This means that if the basic frequency is 60 Hz, the harmonics would be at 120 Hz, 180 Hz, 240 Hz, and so on. Harmonics are additional frequencies that are present in a waveform and are caused by distortions or interference. In this case, the harmonics are related to the frequency of the sine wave, not the voltage, amplitude, or current.

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  • 31. 

    Which of the following information is required for battery cell sizing, regardless of method chosen:

    • Direct current required in amperes at minimum voltage, or load in volt-amperes

    • Direct current input window of the load

    • Operating temperature of the battery

    • Battery backup time required

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Battery cell sizing requires all of the above information because each piece of information is crucial for determining the appropriate size and capacity of the battery. The direct current required in amperes or load in volt-amperes helps in calculating the power requirements of the load. The direct current input window of the load helps in determining the range of current that the battery needs to provide. The operating temperature of the battery is important as it affects the battery's performance and lifespan. Lastly, the battery backup time required helps in determining the capacity and energy storage needed in the battery to meet the desired backup duration.

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  • 32. 

    The optimum temperature that a battery should be maintained at is typically:

    • 65 degrees F

    • 72 degrees F

    • 77 degrees F

    • 83 degrees F

    Correct Answer
    A. 77 degrees F
    Explanation
    Batteries should be maintained at an optimum temperature of 77 degrees F. This temperature provides the ideal balance between performance and longevity for most types of batteries. Higher temperatures can lead to faster degradation and shorter lifespan, while lower temperatures can reduce the battery's capacity and ability to deliver power. Therefore, 77 degrees F is the recommended temperature for maximizing the efficiency and lifespan of batteries.

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  • 33. 

    In DC calculations, you must use a power factor

    • True

    • False

    Correct Answer
    A. False
    Explanation
    dc calculations there is no concern about power factor

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  • 34. 

    If tow waveforms match each other in electrical degrees, they are said to be:

    • Leading each other by 90 degrees

    • Out of phase

    • In phase

    • Voltage concurrent

    Correct Answer
    A. In phase
    Explanation
    When two waveforms match each other in electrical degrees, it means that their peaks and troughs align perfectly. This indicates that they are synchronized and have the same frequency. Therefore, they are said to be "in phase."

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  • 35. 

    Capacitive reactance (XC) is the portion of impedance that opposes a change in ______ due to electrical field coupling.

    • Voltage

    • Wattage

    • Current

    • Resistance

    Correct Answer
    A. Voltage
    Explanation
    Capacitive reactance (XC) is the portion of impedance that opposes a change in voltage due to electrical field coupling. In a capacitive circuit, the capacitive reactance increases as the frequency of the electrical signal increases. This means that as the voltage changes, the capacitive reactance opposes the change, resulting in a delay in the response of the circuit. Therefore, the correct answer is voltage.

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  • 36. 

    The rms value is __________ times the zero-to-peak value of the sine wave

    • 0.5150

    • 0.6061

    • 0.7071

    • 0.8081

    Correct Answer
    A. 0.7071
    Explanation
    The root mean square (rms) value of a sine wave is equal to 0.7071 times its zero-to-peak value. This is a known relationship in electrical engineering and is derived from the mathematical properties of sine waves. The rms value represents the effective value of the sine wave and is commonly used to calculate power or voltage in electrical systems.

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  • 37. 

    When using ohms law V, I, and R respresent what:

    • V= voltage in volts

    • I = inductance in henries

    • R= resistance in watts

    • R= resistance in ohms

    • I= current in amperes

    Correct Answer(s)
    A. V= voltage in volts
    A. R= resistance in ohms
    A. I= current in amperes
    Explanation
    The given answer correctly identifies the variables in Ohm's Law. V represents voltage in volts, R represents resistance in ohms, and I represents current in amperes.

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  • 38. 

    A method of connection for primary or secondary windings of a three-phase transformer bank in which the windings are connected in series to form a closed circuit is known as:

    • Delta

    • Wye

    • Phase joining

    • Patch

    Correct Answer
    A. Delta
    Explanation
    The correct answer is Delta. Delta connection is a method of connecting the primary or secondary windings of a three-phase transformer bank in which the windings are connected in series to form a closed circuit. In this configuration, the end of one winding is connected to the start of the next winding, forming a triangular or delta shape. This type of connection is commonly used in high-voltage power distribution systems.

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  • 39. 

    What tells the tranformers ability to dissipate heat.

    • H-rating

    • R-rating

    • K-rating

    • P-rating

    Correct Answer
    A. K-rating
    Explanation
    The K-rating of a transformer indicates its ability to dissipate heat. A higher K-rating means that the transformer is designed to handle higher levels of heat and can effectively dissipate it. This is important because transformers generate heat during operation, and if not properly dissipated, it can lead to overheating and damage to the transformer. Therefore, the K-rating is a crucial factor in determining the transformer's thermal performance and ensuring its safe and efficient operation.

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  • 40. 

    Conductor sizes larger than 4/0 are specified in terms of the total cross-sectional area of the copper measured in what:

    • Millimeters

    • Circular mills

    • Annular mills

    • Centa mills

    Correct Answer
    A. Circular mills
    Explanation
    Conductor sizes larger than 4/0 are specified in terms of the total cross-sectional area of the copper measured in circular mills. Circular mills is a unit of measurement commonly used in the electrical industry to express the size of large conductors. It represents the area of a circle with a diameter of one mil (1/1000th of an inch). This unit allows for a more precise measurement of conductor size, especially for larger conductors where millimeters or other units may not be practical.

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  • 41. 

    Electrical power provided to commercial buildings and residences is in the form of:

    • DC

    • AC

    • Both AC and DC

    Correct Answer
    A. AC
    Explanation
    The electrical power provided to commercial buildings and residences is in the form of AC (alternating current). AC is the most common form of electrical power used in these settings because it is more efficient for long-distance transmission and can easily be converted to different voltages. Unlike DC (direct current), which flows in only one direction, AC constantly changes direction, allowing for easier voltage regulation and reduced power loss. AC power is also compatible with most electrical devices and appliances used in commercial and residential settings.

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  • 42. 

    The efficiency of a circuit (or load) is the amount of input power required to provide a predetermined output power, expressed as a:

    • Decimal

    • Percentage

    • Fraction

    Correct Answer
    A. Percentage
    Explanation
    The efficiency of a circuit or load is commonly expressed as a percentage. This percentage represents the ratio of the output power to the input power, indicating how effectively the circuit or load converts the input power into useful output power. A higher percentage indicates a more efficient circuit or load, as it requires less input power to provide the desired output power.

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  • 43. 

    How many Btu equal one ton of air conditioning to adequetely cool an area

    • 10,000 Btu

    • 12,000 Btu

    • 15,000 Btu

    • 20,000 Btu

    Correct Answer
    A. 12,000 Btu
    Explanation
    One ton of air conditioning is equal to 12,000 Btu. Btu (British thermal unit) is a unit of measurement for energy. In the context of air conditioning, Btu is used to measure the cooling capacity of an air conditioner. One ton of air conditioning refers to the amount of cooling capacity needed to cool an area effectively. Therefore, the correct answer is 12,000 Btu.

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  • 44. 

    Wye is a method of connection that uses a:

    • Closed circuit

    • Common point

    Correct Answer
    A. Common point
    Explanation
    The correct answer is "common point" because in a Wye connection, all three phases of the circuit are connected to a common point, known as the neutral point. This allows for the sharing of a common reference point for voltage and current measurements. It is commonly used in three-phase electrical systems to distribute power to various loads.

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  • 45. 

    What is a device that is used to disconnect the battery at a preset voltage during battery discharge and allow reconnection only when utility power has been restored.

    • Load sharing device

    • Low-voltage disconnect (LVD)

    • Battery monitor

    • Rectifier/charger

    Correct Answer
    A. Low-voltage disconnect (LVD)
    Explanation
    A low-voltage disconnect (LVD) is a device that is used to disconnect the battery at a preset voltage during battery discharge and allow reconnection only when utility power has been restored. This device helps to protect the battery from being completely discharged, which can damage the battery and reduce its lifespan. By disconnecting the battery at a certain voltage, the LVD ensures that there is enough charge remaining to start the battery when utility power is restored.

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  • 46. 

    What provides electrical isolation from the utility line by using the utility to drive a motor, which in turn drives a generator, producing an AC waveform at the desired voltage

    • Motor generator

    • Engine generator

    • Off-line UPS

    • Line-interactive UPS

    Correct Answer
    A. Motor generator
    Explanation
    A motor generator provides electrical isolation from the utility line by using the utility to drive a motor, which in turn drives a generator, producing an AC waveform at the desired voltage. This setup allows for the generation of electricity independent of the utility line, providing a level of isolation and protection from power fluctuations or disturbances in the utility line.

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  • 47. 

    The ratio of real power to apparent power is a percentage and is called the ________.

    • Power ratio

    • Power variance

    • Power factor

    • Power difference

    Correct Answer
    A. Power factor
    Explanation
    The ratio of real power to apparent power is called the power factor. It is expressed as a percentage and represents the efficiency of an electrical system. A higher power factor indicates a more efficient system, while a lower power factor indicates a less efficient system. It is an important parameter in electrical engineering as it affects the overall performance and cost of electricity usage.

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  • 48. 

    What is the product of the measured voltage and measured amperage called?

    • Real power (measured on the load side and expressed in W)

    • Apparent power (measured on the line side and expressed in VA)

    • Ratio of power (expressed as a fraction)

    • Power factor (expressed as a decimal)

    Correct Answer
    A. Apparent power (measured on the line side and expressed in VA)
    Explanation
    The product of the measured voltage and measured amperage is called apparent power. It is measured on the line side and expressed in VA (volt-amperes).

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  • 49. 

    What is an equipment grounding (earthing) topology that was theorized to reduce the effects of electromagnetic interference (EMI) and radio frequency interference (RFI) on the equipment grounding system.

    • Main termimal ground (MTG)

    • Basic star ground (BSG)

    • Consolidated ground (CG)

    • Isolated ground (IG)

    Correct Answer
    A. Isolated ground (IG)
    Explanation
    Isolated ground (IG) is an equipment grounding topology that was theorized to reduce the effects of electromagnetic interference (EMI) and radio frequency interference (RFI) on the equipment grounding system. This method involves isolating the ground circuit of sensitive equipment from the general building ground, using a separate grounding conductor. By doing so, it aims to minimize the introduction of unwanted electrical noise into the equipment, providing a cleaner and more stable grounding system.

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  • Mar 21, 2023
    Quiz Edited by
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  • Feb 28, 2012
    Quiz Created by
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