ARIZONA CONTRACTOR LICENSE CR-67 STUDY GUIDE EXAM LATEST UPDATE ALL WITH 350 QUESTIONS AND CORRECT DETAILED SOLUTIONS JUST RELEASED THIS YEAR

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ARIZONA CONTRACTOR LICENSE CR-67 STUDY
GUIDE EXAM LATEST UPDATE ALL WITH 350
QUESTIONS AND CORRECT DETAILED
SOLUTIONS JUST RELEASED THIS YEAR


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




Question: Electricity may flow only when? - CORRECT ANSWER✔✔There has to be a for it to
return making a complete circuit



Question: What is the return path for electrical power to flow back to the service panel? -
CORRECT ANSWER✔✔Neutral




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




Question: A ground electrode conductor originates at the neutral or equipment ground bus of
the service panel? - CORRECT ANSWER✔✔True




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

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Question: Compare Watts with Voltage - CORRECT ANSWER✔✔Watts are the measure of
power. Voltage is the measure of potential energy.




Question: You should size conductors no less ______ of the continuous loads plus _________ of
the non-continuous loads,. - CORRECT ANSWER✔✔125% / 100%




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



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




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




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




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

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




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




Question: THWN means? - CORRECT ANSWER✔✔Flame retardant, Heat resistant, Moisture
resistant, Gasoline resistant, and oil resistant.



Question: An insulated grounded conductor which is ____ AWG or below should be identified
by a continuous white or gray outer finish. - CORRECT ANSWER✔✔6 AWG




Question: What is the amount of voltage measured between any two line conductors of a
balanced three-phase system. - CORRECT ANSWER✔✔Line voltage




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




Question: A _______ is unintentional mess up. - CORRECT ANSWER✔✔Ground Fault




Question: 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
overcurrent protective devices currently in place.

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




Question: Grounding and bonding means exactly the same thing? - CORRECT ANSWER✔✔False.
Bonding is a means of allowing electrical continuity between metallic objects.



Question: A typical work space (for a working voltage under 600V) should have a minimum
headroom of ______ m. - CORRECT ANSWER✔✔2.0 m




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




Question: 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




Question: Fast- blow fuses tend to open real quick when the rated current is reached. -
CORRECT ANSWER✔✔True




Question: System grounding is required when you have a supply transformer of a SOV or lower
system? - CORRECT ANSWER✔✔System grounding is required when you have a supply
transformer of a 50V or lower system which itself is supplied from a source over 150V to the
ground