ARIZONA CONTRACTOR LICENSE CR-67 Testbank 400
Question and Answer [2026] | UPDATED ACTUAL
Exam | A+ Verified
• 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. -✓✓ Ground Fault
• An effective Ground-Fault current path is? -✓✓ 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 -✓✓ False. GFCI = ground-
fault circuit interrupter
• Grounding and bonding means exactly the same thing? -✓✓ 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. -✓✓ 2.0 m
Question and Answer [2026] | UPDATED ACTUAL
Exam | A+ Verified
• 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. -✓✓ Ground Fault
• An effective Ground-Fault current path is? -✓✓ 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 -✓✓ False. GFCI = ground-
fault circuit interrupter
• Grounding and bonding means exactly the same thing? -✓✓ 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. -✓✓ 2.0 m
