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Alterna ng Current (AC) always flows one way then the other? - Ans True. AC always flows one
way then the other.
The frequency of AC is measured in? - Ans Measured in hertz Hz
What refers to a voltage can convey informa on? - Ans Electrical Signal
What refers to the maximum voltage that can be reached by a signal? - Ans Amplitude
Electricity may flow only when? - Ans 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? - Ans Neutral
The live wire is always ungrounded? - Ans True. They are very hot caring electrical power
A ground electrode conductor originates at the neutral or equipment ground bus of the service
panel? - Ans True
A ground electrode should not be made in contact with the earth? - Ans False. sound be on
contact with the earth
Compare Wa,s with Voltage - Ans Wa,s are the measure of power. Voltage is the measure of
poten al energy.
, You should size conductors no less ______ of the con nuous loads plus _________ of the non-
con nuous loads,. - Ans 125% / 100%
Conductor sizes are o7en expressed in? - Ans American Wire Gage (AWG)
What refers to the allowable current-carrying capacity of a conductor? - Ans Ampacity
The insula on type determines the areas the writers can and cannot used? - Ans True
RHH wires use rubber insula on that is high heat resistant and is good in? - Ans Is only good in
dry loca ons.
RHW-2 wires use the rubber insula on but are suitable for wet loca ons? - Ans True
What cables can be used inside wall, ceiling or under the floor. - Ans Non-metallic (NM)
What cables are most appropriate for damp areas? - Ans Underground feeder (UF) or Non-
metallic Wet underground (NMWU)
THWN means? - Ans Flame retardant, Heat resistant, Moisture resistant, Gasoline resistant,
and oil resistant.
An insulated grounded conductor which is ____ AWG or below should be iden fied by a
con nuous white or gray outer finish. - Ans 6 AWG
What is the amount of voltage measured between any two line conductors of a balanced three-
phase system. - Ans Line voltage
, What describes the voltage measured across any one component of a balanced three-phase
system. - Ans Phase Voltage
A _______ is uninten onal mess up. - Ans Ground Fault
An effec ve Ground-Fault current path is? - Ans An effec ve Ground-Fault current paths a
path inten onally constructed to facilitate the opera on of the overcurrent protec ve devices
currently in place.
GFCI is never sensi ve to small "leaks" of current - Ans False. GFCI = ground-fault circuit
interrupter
Grounding and bonding means exactly the same thing? - Ans False. Bonding is a means of
allowing electrical con nuity between metallic objects.
A typical work space (for a working voltage under 600V) should have a minimum headroom of
______ m. - Ans 2.0 m
typically there are ____ hot wires running from the u lity company into the service panel. -
Ans 2
A service disconnect need to have a ra ng which is? - Ans No less than that the calculated load
or for the type of installa on
Fast- blow fuses tend to open real quick when the rated current is reached. - Ans True