Electrical Systems for Buildings MCQs
Electrical Systems for Buildings MCQs
Our team has conducted extensive research to compile a set of Electrical Systems for Buildings MCQs. We encourage you to test your Electrical Systems for Buildings knowledge by answering these multiple-choice questions provided below.
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1: What is the Federal Energy Regulatory Commission?
A. A commission that regulates natural gas projects
B. An independent agency that regulates the interstate transmission of natural gas, oil, and electricity.
C. A commission that regulates interstate transportation
D. A commission that regulates energy projects
2: What does FERC stand for?
A. Foreign Exchange Regulation Commission
B. Federal Energy Regulatory Commission
C. Federal Energy Regulatory Council
D. Federal Emergency Relief Committee
3: What is the purpose of a feeder?
A. To provide nourishment
B. To generate electricity
C. To conduct electricity between the service equipment and the final overcurrent device
D. To conduct water
4: What is a primary feeder?
A. A feeder operating at alternating voltage supplying a distribution circuit.
B. A feeder operating at tertiary voltage supplying a distribution circuit.
C. A feeder operating at secondary voltage supplying a distribution circuit.
D. A feeder operating at primary voltage supplying a distribution circuit.
5: What is the voltage of a primary feeder?
A. Primary voltage
B. Secondary voltage
C. Medium voltage
D. Low voltage
6: What is the ability of the generation fleet to change its output (ramp) rapidly called?
A. Rigidity
B. Inelasticity
C. Flexibility
D. Elasticity
7: What does a flexible distribution system rely on for power?
A. A mix of grid and local sources
B. Only local sources
C. Only grid power
D. Demand response
8: What is the purpose of a Forward Capacity Market?
A. To ensure that a power system will have sufficient resources to meet the future demand for oil.
B. To ensure that a power system will have sufficient resources to meet the current demand for electricity.
C. To ensure that a power system will have sufficient resources to meet the future demand for electricity.
D. To ensure that a power system will have sufficient resources to meet the future demand for gas.
9: What does the forward capacity market ensure?
A. That a power system will have necessary resources to meet the future demand for electricity.
B. That a power system will have sufficient resources to meet the future demand for electricity.
C. That a power system will have adequate resources to meet the future demand for electricity.
D. That a power system will have sufficient resources to meet the current demand for electricity.
10: What is the Forward Capacity Auction?
A. An auction where resources compete to obtain a commitment to supply capacity in exchange for a market-priced capacity payment.
B. A way to reduce carbon emissions
C. A method of electrical power generation
D. A type of merger
11: What is the "circuit-opening fusible part" of a fuse?
A. The part of the fuse that is not opened by the passage of the overcurrent through it.
B. The part of the fuse that is not heated by the passage of the overcurrent through it.
C. The part of the fuse that is not severed by the passage of the overcurrent through it.
D. The part of the fuse that is heated and severed by the passage of the overcurrent through it.
12: What is ferrite used for?
A. To conduct electricity
B. To cool equipment
C. To prevent high frequency electrical noise from entering or exiting the equipment.
D. To insulate against heat
13: What is a Feeder?
A. A machine that helps to wash clothes
B. A device that helps to clean water
C. A three phase distribution line circuit used as a source to other three phase and single phase circuits.
D. A machine that helps to chop vegetables
14: What does FPI stand for?
A. Fault Passage Indicator
B. Foreign Policy Initiative
C. False Positive Indicator
D. Film Production Industry
15: What is a frequency transducer?
A. A device that converts electromagnetic waves into electrical signals
B. A transducer used for the measurement of the frequency of an A.C. electrical quantity
C. A device that converts electrical signals into mechanical energy
D. A device that converts mechanical energy into electrical signals
16: What is the main purpose of a fuse?
A. To power equipment
B. To measure current
C. To control current
D. To protect equipment from over current conditions and damage
17: What is the main purpose of a GFCI?
A. To increase the voltage of a circuit
B. To improve the quality of the current in a circuit
C. To prevent electrical shocks
D. To provide extra protection for outdoor circuits
18: What is the UK term for "ground"?
A. Outlet
B. Earth
C. Overload
D. Ground
19: What is a ground fault?
A. A current path between two conductors
B. A current path between ground and an electrical potential.
C. An undesired current path between ground and an electrical potential.
D. A current path between two circuit breakers
20: What is an undesired current path between ground and an electrical potential called?
A. Ground Fault
B. Short Circuit
C. Line Surge
D. Open Circuit
21: Electric energy is generated by which of the following?
A. Solar thermal
B. Natural gas, coal, oil
C. Photovoltaic, wind- farm, hydroelectric
D. Nuclear fission, nuclear fusion
22: What is the trend of the conventional power grid generation model?
A. To shift from distributed generation connected to distribution, to a mix of that and centralized generation connected to transmission
B. To shift from centralized generation connected to distribution, to a mix of that and distributed generation connected to transmission
C. To shift from distributed generation connected to transmission, to a mix of that and centralized generation connected to distribution
D. To shift from centralized generation connected to transmission, to a mix of that and distributed generation connected to distribution
23: What is the term used to describe the shift from centralized generation to a mix of centralized and distributed generation?
A. Load Division
B. Generation Bifurcation
C. Generation Division
D. Load Bifurcation
24: What is the process of varying the output from generation on a moment-to-moment basis to meet changing supply requirements called?
A. Load Dispatch
B. Generation Dispatch
C. Unit Commitment
D. Power Dispatch
25: What is Generation Dispatch?
A. The process of varying the output from generation on a moment-to-moment basis to meet changing demand requirements.
B. The process of varying the output from generation on a moment-to-moment basis to meet changing supply requirements.
C. The process of varying the output from generation on an hourly basis to meet changing supply requirements.
D. The process of creating an energy storage system to capture and store energy for later use.
26: What is a generator trip?
A. A generator trip occurs when there is a loss of power
B. A generator trip occurs when the power system is overloaded
C. A generator trip occurs when there is a sudden increase in demand for power
D. A generator trip occurs when a generator fails and causes a contingency condition on the power system.
27: What causes an electric grid to fail due to collapsing voltage?
A. Grid Instability
B. Geomagnetic storms
C. Solar flares
D. EMP weapon
28: What are the services that make up a grid service?
A. There are no services that make up a grid service.
B. Unconventional Ancillary Services, and other emerging services that facilitate particular grid qualities.
C. Conventional Ancillary Services, and other emerging services that facilitate particular grid qualities.
D. Conventional Ancillary Services, and other emerging services that do not facilitate particular grid qualities.
29: What is the historical definition of a grid?
A. A structure consisting of electric infrastructure, control structure, regulatory structure, industry structure, digital superstructure, convergent networks, and coordination frameworks
B. A network for transmitting and distributing electrical power
C. A system for generating and distributing electricity to customers
30: What is Smart/Intelligent Grid?
A. A system that uses advanced metering infrastructure to improve customer service.
B. A system that uses automated demand response to reduce peak demand.
C. A system that uses renewable energy sources to power electric vehicles.
D. A system that uses sensors, actuators, and distributed computing to control the flow of electricity.
31: What is an electric power system that utilizes information exchange and control technologies called?
A. Grid
B. Power System
C. Electric System
D. Electrical System
32: What is a Local grid?
A. A power station that produces electricity to be fed into a grid
B. A system of electrical generation, distribution, and utilization
C. A Microgrid or Nanogrid
D. A device that measures the amount of power in an electrical circuit
33: What is the Harmonized Code?
A. A mathematical formula
B. A type of musical composition
C. An international coding system for specifying the attributes of cord voltages, jackets, diameters, etc.
D. A computer programming language
34: How many hertz are in one cycle per second?
A. 4
B. 1
C. 3
D. 2
35: What equates to one cycle per second?
A. Four hertz
B. Two hertz
C. Three hertz
D. One hertz
36: What is the meaning of "roo-mean-square ac voltage"?
A. The minimum voltage of an electric power system.
B. The average voltage of an electric power system.
C. The maximum voltage of an electric power system.
D. The voltage of an electric power system at a specific time.
37: What does HV system stand for?
A. Highly Volatile System
B. Heavy Voltage System
C. Hardly Visible System
D. High Voltage System
38: One horsepower is equivalent to _____ watts.
A. 666
B. 1260
C. 746
D. 1000
39: What is one horsepower equivalent to in terms of power usage?
A. 746 watts
B. 1000 watts
C. 800 watts
D. 550 watts
40: What is ISO responsible for?
A. Planning the electrical grid
B. Maintaining system balance, reliability, and electricity market operation
C. Generating electricity
D. Distributing electricity
41: What is the Independent System Operator (ISO) responsible for?
A. Carrying out construction projects
B. Planning the electrical grid
C. Maintaining system balance, reliability, and electricity market operation.
D. Deciding electricity rates
42: What does the acronym "ICC" stand for?
A. International Confederation of Cinematographers
B. International Color Code
C. International Committee on Climate Change
D. International Criminal Court
43: What does the ICC standardize?
A. International law
B. Currency Conversion
C. Weather patterns
D. Wire jacket colors
44: What does IEC stand for?
A. Intergovernmental Economic Cooperation
B. International Electrotechnical Commission
C. International Energy Commission
D. International Electrical Council
45: What is an impulse?
A. The rate at which work is done.
B. A measure of how difficult it is to stop an object.
C. A sudden burst of energy or emotion.
D. A current surge.
46: What is the Impulse Test used for?
A. To determine the speed of an object
B. To find the acceleration of an object
C. To confirm that the insulation level is sufficient to withstand overvoltages
D. To calculate the density of an object
47: Induced Voltage is caused by a:
A. Resistor
B. Nearby electric field
C. Decreasing current
D. Changing magnetic flux
48: What is a cord?
A. A measure of length equal to 22 yards
B. A unit of electrical resistance equal to one millionth of an ohm
C. A type of strong thread made of several strands of twine twisted together
D. A tool used for cutting wood
49: What is a jacket?
A. Outer material layer of a cord.
B. An article of clothing worn by men or women in cold weather
C. A coat
D. A sleeveless garment extending from the neck to the waist
50: What is a jumper?
A. A person who jumps
B. An electrical connection between two points.
C. A type of shoe
D. A type of clothing
51: What is a kilowatt?
A. A unit used to measure the rate of energy transfer
B. 1000 joules per second
C. Kilojoules per second
D. 1000 watts of real power. Expressed at kW.
52: What does kVA stand for?
A. 1,000 Very Angry People
B. Apparent Power expressed in Thousand Volt-Amps
C. 1,000 Volts of Alternative Power
D. 1,000Volt Amps
53: What is the definition of "Lag?"
A. The resistance offered by a material to the flow of current.
B. The condition where the current is delayed in time with respect to the voltage in an ac circuit.
C. The condition where the voltage is delayed in time with respect to the current in an ac circuit.
D. A unit of measure of an AC power supply.
54: What is a lateral circuit?
A. A power line that is not the main line
B. A power line that is not needed
C. A tap-off line to take primary distribution from the main power line to a nearby load center.
D. A type of electrical circuit
55: What is the other name for lay direction?
A. The twist of conductors in a machine.
B. The twist of conductors in a cable.
C. The direction in which the wires of a conductor are stretched.
D. The direction in which the wires of a conductor are crossed.
56: What does LED stand for?
A. Light Enhancing Diode
B. Light Emitting Diode
C. Long Exposure Daguerreotype
D. Light Emitting Dioxide
57: What does a limit switch do?
A. A limit switch is used to measure temperature or pressure.
B. A limit switch is used to create electrical circuits.
C. A limit switch is used to protect against overloads.
D. A limit switch is used to open or close electrical circuits when certain limits are reached.
58: What does MCC stand for?
A. Military Command Center
B. Main Control Center
C. Mission Control Center
D. Motor Control Center
59: What is the maximum voltage for aMedium Voltage electrical system?
A. 50 kV
B. 48 kV
C. 60 kV
D. 38 kV
60: What is the meaning of the word "Midget"?
A. A very small person
B. Referring to an inlet or outlet with a shallow depth
C. Of limited or below average height
D. A person with above average intelligence
61: What does NACC stand for?
A. North American Cartographic Council
B. National Association of Colour Corporations
C. North American Color Code
D. National Association of Credit Counselors
62: What does nominal voltage refer to?
A. The dc voltage required to produce a given dc current in a circuit.
B. A nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class.
C. The rms value of an ac voltage.
D. The highest voltage that can be applied to a circuit without causing damage.
63: What does the term "Non-Load break" refer to?
A. A device used to measure or indicate the current in an electrical circuit.
B. A device used to connect or disconnect circuit breakers
C. A device used to protect against overloading in an electrical circuit.
D. A group of rubber insulating products that cannot be separated under load.
64: What does "Non-Load break" refer to?
A. The process of deliberately disconnecting a part of an electrical system
B. A group of rubber insulating products that can be separated under load
C. A group of rubber insulating products that cannot be separated under load
D. A device used to connect or disconnect electric circuits
65: What is a Notching Relay?
A. A relay which switches in response to a specific number of applied impulses.
B. A device that measures frequency
C. A solid state relay
D. A time delay relay
66: What is Off Peak Power?
A. Power supplied during designated periods of low power system demand.
B. Power supplied during designated periods of high power system demand.
C. Peak power
D. A type of energy
67: What does OD stand for?
A. Open Day
B. Outer Diameter
C. Online Data
D. Original Design
68: What is a fuse used on overhead electrical distribution systems held in place by?
A. One spring
B. No device
C. Two springs
D. A magnet
69: What causes an Outage?
A. Voltage sags
B. Planned maintenance
C. Internal component failures
D. External factors such as trees
70: What is the specified maximum magnitude of the input quantity that can be applied for a specified period of time without causing damage?
A. Overload
B. Magnitude
C. Input quantity
D. Specified period of time
71: What does PCC stand for?
A. Polycrystalline Silicon Carbide
B. Point of Common Coupling
C. Probability of Correct Classification
D. PrimaryCare Clinics
72: Why should plugs never be wired to make the exposed pins live while unplugged?
A. It is unnecessary
B. It is dangerous
C. It is inefficient
D. Plugged devices will not work
73: Which of the following is true about plugs?
A. They are always live until they are plugged into a power source
B. They are always dead until they are plugged into a power source
C. Plugs are devices that are plugged into a power source in order to make the exposed pins live.
D. Plugs are male cord mounted wiring devices with the conducting pins recessed and not exposed.
74: What does the term "Polarized" mean in relation to plugs and connectors?
A. A plug and connector that is not able to connect properly.
B. A plug and connector that is not properly grounded.
C. A plug and connector that is not properly insulated.
D. A plug and connector formed in a way that only allows proper connection.
75: What is the unit of power?
A. Seconds
B. Joules
C. Volts
D. Watts
76: What is the definition of power?
A. The rate of doing work, measured in watts
B. The amount of work done over a given time, measured in joules
C. Rate at which energy is released or consumed, expressed in watts.
D. Energy divided by time, measured in joules per second
77: What is a pull?
A. To tug or draw
B. A fishing term
C. A type of fabric
D. The installation of one or more cables.
78: Pull tension is measured in _____.
A. Pounds or kilograms
B. Miles
C. Feet
D. Yards
79: What is pulling?
A. The act of removing one or more cables.
B. The act of replacing one or more cables.
C. The act of organizing one or more cables.
D. The act of installing one or more cables.
80: A receptacle is a:
A. Flange mounted wiring device
B. Female flange mounted wiring device
C. Wiring device
D. Male flange mounted wiring device
81: A receptacle is which of the following?
A. A flange mounted wiring device that is not recessed.
B. A male flange mounted wiring device with the conducting elements recessed behind the mating surface.
C. A device that is not wired to the source of power.
D. A female flange mounted wiring device with the conducting elements recessed behind the mating surface.
82: Which of the following is NOT a use for a Regulator?
A. To increase the voltage of a circuit.
B. To decrease the voltage of a circuit.
C. To control the voltage of a circuit by raising and lowering it.
D. To keep the voltage of a circuit constant.
83: What are relays used for on power systems?
A. To detect excessive currents and send signals to protective devices
B. To increase the voltage of the power
C. To distribute the power evenly
D. To provide backup power in the event of a power outage
84: What is the designation ROJ stand for?
A. Russian Orthodox Jew
B. Red Oval Jello
C. Raise Our Juniors
D. Remove Outer Jacket
85: What does SEC stand for?
A. Secondary Electrical Cable
B. Service Entrance Cable
C. Special Event Coordinator
D. Service Entrance Capacity
86: What is a short circuit?
A. A load that occurs when an ungrounded conductor does not come into contact with another conductor or grounded object.
B. A load that occurs when an ungrounded conductor comes into contact with another conductor or grounded object.
C. A load that occurs when a conductor comes into contact with an object.
D. A load that occurs when a grounded conductor comes into contact with another conductor or grounded object.
87: What is slitting?
A. A unit of measurement
B. A method of printing
C. A type of weld
D. The designation to separate insulated parallel wires.
88: What is the designation to separate insulated parallel wires?
A. Stripping
B. Slitting
C. Splicing
D. Seaming
89: What is the act of installing overhead electrical wire or conductor called?
A. Hanging
B. Stringing
C. Mounting
D. Connecting
90: What is stringing?
A. The process of making a rope or string tight
B. The act of pulling a wire through a conduit
C. The process of joining two pieces of metal
D. The act of installing overhead electrical wire or conductor.
91: What does the designation "stripping" refer to?
A. Removal of the insulation or jacket from a conductor/wire
B. The process of adding insulation or a jacket to a conductor/wire
C. The process of removing all electrical charge from a conductor/wire
D. The process of coating a conductor/wire in a material that is not electrically conductive
92: What does stripping refer to?
A. The removal of the insulation or jacket from a conductor/wire.
B. Giving a wire a negative electrical charge.
C. The process of adding insulation to a conductor/wire.
D. The act of making a wire thinner.
93: What does " Temperatue Rating" mean?
A. The maximum temperature at which insulation will maintain its integrity.
B. The point at which insulation will begin to degrade
C. The minimum temperature at which insulation will be effective
D. Temperature at which the material will begin to soften
94: What is the purpose of a terminal?
A. To fasten a device
B. To provide a point of connection to external circuits
C. To end a wire
D. To act as a conductor
95: What is the act of preparing the connection or transition of an insulating cable called?
A. Termination
B. Transitioning
C. Connecting
D. Completion
96: What is the definition of Ultra High Voltage (UFV)?
A. Transmission systems in the ac voltage equals or exceeds 1,000,000 volts.
B. Transmission systems in the ac voltage exceeds 800,000 volts.
C. Transmission systems in the ac voltage equals or exceeds 800,000 volts.
D. Transmission systems in the dc voltage exceeds 800,000 volts.
97: What is a single relay that can be used alone or in combinations with others called?
A. Multiple Electric Relay
B. Single Electric Relay
C. Unit Electrical Relay
D. Combined Electrical Relay
98: What does UPS stand for?
A. Uninterrupted Power Supply
B. Uninterruptable Power Supply
C. Universal Parcel Service
D. United Parcel Service
99: What is the meaning of USE?
A. Union of Soviet Socialists
B. Underground Service Entrance conductor or cable.
C. Unicycles Society Event
D. Upper Society Elite
100: What does USE stand for?
A. United States of America
B. Union of Soviet Socialist Republics
C. Universal Serial Bus
D. Underground Service Entrance
List of Electrical Systems for...
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Electrical Systems for Buildings MCQs
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Domande sugli impianti elettrici degli edifici in lingua italiana
Questions sur les systèmes électriques pour les bâtiments en langues françaises
Questões de Sistemas Elétricos para Edifícios em Língua Portuguesa
Fragen zu elektrischen Systemen für Gebäude in deutscher Sprache
中文（简体）语言的建筑电气系统问题
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