Arizona Contractor License CR-
67 actual questions fully solved
(LATEST UPDATED VERSION
GRADED A+)
Alternating Current (AC) always flows one way then the other? -
answer True. AC always flows one way then the other.
The frequency of AC is measured in? - answer Measured in hertz Hz
What refers to a voltage can convey information? - answer Electrical
Signal
What refers to the maximum voltage that can be reached by a
signal? - answer Amplitude
Electricity may flow only when? - answer 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? - answer Neutral
The live wire is always ungrounded? - answer True. They are very
hot caring electrical power
A ground electrode conductor originates at the neutral or
equipment ground bus of the service panel? - answer True
A ground electrode should not be made in contact with the earth? -
answer False. sound be on contact with the earth
,Compare Watts with Voltage - answer 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,. - answer 125% / 100%
Conductor sizes are often expressed in? - answer American Wire
Gage (AWG)
What refers to the allowable current-carrying capacity of a
conductor? - answer Ampacity
The insulation type determines the areas the writers can and cannot
used? - answer True
RHH wires use rubber insulation that is high heat resistant and is
good in? - answer Is only good in dry locations.
RHW-2 wires use the rubber insulation but are suitable for wet
locations? - answer True
What cables can be used inside wall, ceiling or under the floor. -
answer Non-metallic (NM)
What cables are most appropriate for damp areas? - answer
Underground feeder (UF) or Non-metallic Wet underground (NMWU)
THWN means? - answer 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. - answer 6
AWG
What is the amount of voltage measured between any two line
conductors of a balanced three-phase system. - answer Line voltage
What describes the voltage measured across any one component of
a balanced three-phase system. - answer Phase Voltage
A _______ is unintentional mess up. - answer Ground Fault
An effective Ground-Fault current path is? - answer An effective
Ground-Fault current paths a path intentionally constructed to
facilitate the operation of the overcurrent protective devices
currently in place.
GFCI is never sensitive to small "leaks" of current - answer False.
GFCI = ground-fault circuit interrupter
Grounding and bonding means exactly the same thing? - answer
False. Bonding is a means of allowing electrical continuity between
metallic objects.
A typical work space (for a working voltage under 600V) should
have a minimum headroom of ______ m. - answer 2.0 m
typically there are ____ hot wires running from the utility company
into the service panel. - answer 2
A service disconnect need to have a rating which is? - answer No
less than that the calculated load or for the type of installation
67 actual questions fully solved
(LATEST UPDATED VERSION
GRADED A+)
Alternating Current (AC) always flows one way then the other? -
answer True. AC always flows one way then the other.
The frequency of AC is measured in? - answer Measured in hertz Hz
What refers to a voltage can convey information? - answer Electrical
Signal
What refers to the maximum voltage that can be reached by a
signal? - answer Amplitude
Electricity may flow only when? - answer 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? - answer Neutral
The live wire is always ungrounded? - answer True. They are very
hot caring electrical power
A ground electrode conductor originates at the neutral or
equipment ground bus of the service panel? - answer True
A ground electrode should not be made in contact with the earth? -
answer False. sound be on contact with the earth
,Compare Watts with Voltage - answer 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,. - answer 125% / 100%
Conductor sizes are often expressed in? - answer American Wire
Gage (AWG)
What refers to the allowable current-carrying capacity of a
conductor? - answer Ampacity
The insulation type determines the areas the writers can and cannot
used? - answer True
RHH wires use rubber insulation that is high heat resistant and is
good in? - answer Is only good in dry locations.
RHW-2 wires use the rubber insulation but are suitable for wet
locations? - answer True
What cables can be used inside wall, ceiling or under the floor. -
answer Non-metallic (NM)
What cables are most appropriate for damp areas? - answer
Underground feeder (UF) or Non-metallic Wet underground (NMWU)
THWN means? - answer 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. - answer 6
AWG
What is the amount of voltage measured between any two line
conductors of a balanced three-phase system. - answer Line voltage
What describes the voltage measured across any one component of
a balanced three-phase system. - answer Phase Voltage
A _______ is unintentional mess up. - answer Ground Fault
An effective Ground-Fault current path is? - answer An effective
Ground-Fault current paths a path intentionally constructed to
facilitate the operation of the overcurrent protective devices
currently in place.
GFCI is never sensitive to small "leaks" of current - answer False.
GFCI = ground-fault circuit interrupter
Grounding and bonding means exactly the same thing? - answer
False. Bonding is a means of allowing electrical continuity between
metallic objects.
A typical work space (for a working voltage under 600V) should
have a minimum headroom of ______ m. - answer 2.0 m
typically there are ____ hot wires running from the utility company
into the service panel. - answer 2
A service disconnect need to have a rating which is? - answer No
less than that the calculated load or for the type of installation
