Arizona Contractor License CR-67
Questions and Correct Answers/ Latest
Update / Already Graded
Alternating Current (AC) always flows one way then the other?
Ans: True. AC always flows one way then the other.
The frequency of AC is measured in?
Ans: Measured in hertz Hz
What refers to a voltage can convey information?
Ans: Electrical Signal
What refers to the maximum voltage that can be reached by a signal?
Ans: Amplitude
Electricity may flow only when?
Ans: There has to be a for it to return making a complete
circuit
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What is the return path for electrical power to flow back to the service
panel?
Ans: Neutral
The live wire is always ungrounded?
Ans: True. They are very hot caring electrical power
A ground electrode conductor originates at the neutral or equipment
ground bus of the service panel?
Ans: True
A ground electrode should not be made in contact with the earth?
Ans: False. sound be on contact with the earth
Compare Watts with Voltage
Ans: Watts are the measure of power. Voltage is the measure
of potential energy.
You should size conductors no less ______ of the continuous loads plus
_________ of the non-continuous loads,.
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Ans: 125% / 100%
Conductor sizes are often expressed in?
Ans: American Wire Gage (AWG)
What refers to the allowable current-carrying capacity of a conductor?
Ans: Ampacity
The insulation type determines the areas the writers can and cannot
used?
Ans: True
RHH wires use rubber insulation that is high heat resistant and is good
in?
Ans: Is only good in dry locations.
RHW-2 wires use the rubber insulation but are suitable for wet
locations?
Ans: True
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What cables can be used inside wall, ceiling or under the floor.
Ans: Non-metallic (NM)
What cables are most appropriate for damp areas?
Ans: Underground feeder (UF) or Non-metallic Wet
underground (NMWU)
THWN means?
Ans: Flame retardant, Heat resistant, Moisture resistant,
Gasoline resistant, and oil resistant.
An insulated grounded conductor which is ____ AWG or below should
be identified by a continuous white or gray outer finish.
Ans: 6 AWG
What is the amount of voltage measured between any two line
conductors of a balanced three-phase system.
Ans: Line voltage
What describes the voltage measured across any one component of a
balanced three-phase system.
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