Thermal insulation shall not be installed within __________ inch(es) of recessed fixtures.
a. 1⁄2
b. 3⁄4
c. 2
d. 3
ANSWER :
d
There are six conductors in a raceway connected to 75° rated breakers. Each wire has a 70-
amp load using
THHN conductors. The minimum size conductor used are #__________ AWG.
a. 4
b. 6
c. 8
d. 10
ANSWER :
a
A 1-inch conduit contains three 3-wire circuits. All conductors are #10 TW. Each circuit con-
sist of two
phase conductors, one grounded conductor, and one equipment grounding conductor. The
maximum
ampacity of each phase conductor is__________ amps.
a. 24
1
,b. 28
c. 30
d. 35
ANSWER :
a
The volt/ampere rating of a device that consumes 14.5 amps on a 230-volt circuit is
__________ watts.
a. 3335
b. 244.5
c. 15.85
d. 14.5
ANSWER :
a
A 208v, 3 phase heater draws 3,598 watts. How many amperes does it draw?
a. 10
b. 12
c. 14
d. 16
ANSWER :
a
A 15 or 20-amp receptacle shall be located within _________ feet of a roof top air condi-
tioner.
a. 25
b. 35
c. 75
2
, d. 100
ANSWER :
a
The maximum overcurrent protection for eight current carrying #12 THHN conductors in a
1⁄2" conduit is
_________ amps.
a. 10
b. 15
c. 20
d. 25
ANSWER :
c
An AC system of 50 to 1,000 volts shall be grounded if maximum voltage to ground does not
exceed _______
volts.
a. 50
b. 100
c. 150
d. 200
ANSWER :
c
There is a 10 Hp, 230 volt, 3 phase motor, code letter G. The maximum standard rating in-
verse time circuit
breaker permitted to serve as branch circuit, short circuit, and ground fault protection when
the motor
starts the load without difficulty is _________ amps.
3
a. 1⁄2
b. 3⁄4
c. 2
d. 3
ANSWER :
d
There are six conductors in a raceway connected to 75° rated breakers. Each wire has a 70-
amp load using
THHN conductors. The minimum size conductor used are #__________ AWG.
a. 4
b. 6
c. 8
d. 10
ANSWER :
a
A 1-inch conduit contains three 3-wire circuits. All conductors are #10 TW. Each circuit con-
sist of two
phase conductors, one grounded conductor, and one equipment grounding conductor. The
maximum
ampacity of each phase conductor is__________ amps.
a. 24
1
,b. 28
c. 30
d. 35
ANSWER :
a
The volt/ampere rating of a device that consumes 14.5 amps on a 230-volt circuit is
__________ watts.
a. 3335
b. 244.5
c. 15.85
d. 14.5
ANSWER :
a
A 208v, 3 phase heater draws 3,598 watts. How many amperes does it draw?
a. 10
b. 12
c. 14
d. 16
ANSWER :
a
A 15 or 20-amp receptacle shall be located within _________ feet of a roof top air condi-
tioner.
a. 25
b. 35
c. 75
2
, d. 100
ANSWER :
a
The maximum overcurrent protection for eight current carrying #12 THHN conductors in a
1⁄2" conduit is
_________ amps.
a. 10
b. 15
c. 20
d. 25
ANSWER :
c
An AC system of 50 to 1,000 volts shall be grounded if maximum voltage to ground does not
exceed _______
volts.
a. 50
b. 100
c. 150
d. 200
ANSWER :
c
There is a 10 Hp, 230 volt, 3 phase motor, code letter G. The maximum standard rating in-
verse time circuit
breaker permitted to serve as branch circuit, short circuit, and ground fault protection when
the motor
starts the load without difficulty is _________ amps.
3
