Arizona Contractor License CR-67 Questions and Correct Answers

Arizona Contractor License CR-67
Questions and Correct Answers
2025-2026
Alternating Current (AC) always flows one way then the other? - CORRECT ANSWER -
True. AC always flows one way then the other.



The frequency of AC is measured in? - CORRECT ANSWER -Measured in hertz Hz



What refers to a voltage can convey information? - CORRECT ANSWER -Electrical Signal



What refers to the maximum voltage that can be reached by a signal? -
CORRECT ANSWER -Amplitude



Electricity may flow only when? - CORRECT 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? -
CORRECT ANSWER -Neutral



The live wire is always ungrounded? - CORRECT ANSWER -
True. They are very hot caring electrical power



A ground electrode conductor originates at the neutral or equipment ground bus of the ser
vice panel? - CORRECT ANSWER -True



A ground electrode should not be made in contact with the earth? - CORRECT ANSWER -
False. sound be on contact with the earth

,Compare Watts with Voltage - CORRECT 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 n
on-continuous loads,. - CORRECT ANSWER -125% / 100%



Conductor sizes are often expressed in? - CORRECT ANSWER -American Wire Gage (AWG)



What refers to the allowable current-carrying capacity of a conductor? -
CORRECT ANSWER -Ampacity



The insulation type determines the areas the writers can and cannot used? -
CORRECT ANSWER -True



RHH wires use rubber insulation that is high heat resistant and is good in? -
CORRECT ANSWER -Is only good in dry locations.



RHW-2 wires use the rubber insulation but are suitable for wet locations? -
CORRECT ANSWER -True



What cables can be used inside wall, ceiling or under the floor. - CORRECT ANSWER -Non-
metallic (NM)



What cables are most appropriate for damp areas? - CORRECT ANSWER -
Underground feeder (UF) or Non-metallic Wet underground (NMWU)



THWN means? - CORRECT 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 co
ntinuous white or gray outer finish. - CORRECT ANSWER -6 AWG



What is the amount of voltage measured between any two line conductors of a balanced t
hree-phase system. - CORRECT ANSWER -Line voltage



What describes the voltage measured across any one component of a balanced three-
phase system. - CORRECT ANSWER -Phase Voltage



A is unintentional mess up. - CORRECT ANSWER -Ground Fault



An effective Ground-Fault current path is? - CORRECT ANSWER -An effective Ground-
Fault current paths a path intentionally constructed to facilitate the operation of the overcu
rrent protective devices currently in place.



GFCI is never sensitive to small "leaks" of current - CORRECT ANSWER -
False. GFCI = ground-fault circuit interrupter



Grounding and bonding means exactly the same thing? - CORRECT 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. - CORRECT ANSWER -2.0 m



typically there are hot wires running from the utility company into the service panel. -
CORRECT ANSWER -2



A service disconnect need to have a rating which is? - CORRECT ANSWER -
No less than that the calculated load or for the type of installation