Arizona Contractor License CR-67
Questions And Correct Answers
Alternating Current (AC) always flows one way then the other?
True. AC always flows one way then the other.
The frequency of AC is measured in?
Measured in hertz Hz
What refers to a voltage can convey information?
Electrical Signal
What refers to the maximum voltage that can be reached by a signal?
Amplitude
Electricity may flow only when?
There has to be a for it to return making a complete circuit
,What is the return path for electrical power to flow back to the service panel?
Neutral
The live wire is always ungrounded?
True. They are very hot caring electrical power
A ground electrode conductor originates at the neutral or equipment ground bus of
the service panel?
True
A ground electrode should not be made in contact with the earth?
False. sound be on contact with the earth
Compare Watts with Voltage
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,.
125% / 100%
,Conductor sizes are often expressed in?
American Wire Gage (AWG)
What refers to the allowable current-carrying capacity of a conductor?
Ampacity
The insulation type determines the areas the writers can and cannot used?
True
RHH wires use rubber insulation that is high heat resistant and is good in?
Is only good in dry locations.
RHW-2 wires use the rubber insulation but are suitable for wet locations?
True
What cables can be used inside wall, ceiling or under the floor.
Non-metallic (NM)
, What cables are most appropriate for damp areas?
Underground feeder (UF) or Non-metallic Wet underground (NMWU)
THWN means?
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.
6 AWG
What is the amount of voltage measured between any two line conductors of a
balanced three-phase system.
Line voltage
What describes the voltage measured across any one component of a balanced three-
phase system.
Phase Voltage
A _______ is unintentional mess up.
Questions And Correct Answers
Alternating Current (AC) always flows one way then the other?
True. AC always flows one way then the other.
The frequency of AC is measured in?
Measured in hertz Hz
What refers to a voltage can convey information?
Electrical Signal
What refers to the maximum voltage that can be reached by a signal?
Amplitude
Electricity may flow only when?
There has to be a for it to return making a complete circuit
,What is the return path for electrical power to flow back to the service panel?
Neutral
The live wire is always ungrounded?
True. They are very hot caring electrical power
A ground electrode conductor originates at the neutral or equipment ground bus of
the service panel?
True
A ground electrode should not be made in contact with the earth?
False. sound be on contact with the earth
Compare Watts with Voltage
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,.
125% / 100%
,Conductor sizes are often expressed in?
American Wire Gage (AWG)
What refers to the allowable current-carrying capacity of a conductor?
Ampacity
The insulation type determines the areas the writers can and cannot used?
True
RHH wires use rubber insulation that is high heat resistant and is good in?
Is only good in dry locations.
RHW-2 wires use the rubber insulation but are suitable for wet locations?
True
What cables can be used inside wall, ceiling or under the floor.
Non-metallic (NM)
, What cables are most appropriate for damp areas?
Underground feeder (UF) or Non-metallic Wet underground (NMWU)
THWN means?
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.
6 AWG
What is the amount of voltage measured between any two line conductors of a
balanced three-phase system.
Line voltage
What describes the voltage measured across any one component of a balanced three-
phase system.
Phase Voltage
A _______ is unintentional mess up.
