journeyman practice test questions and answers with complete solutions

journeyman practice test
questions and answers with
complete solutions
There are six conductors in a raceway connected to 75° rated breakers. Each wire ha
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s a 70-amp load using
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THHN conductors. The minimum size conductor used are #__________ AWG.
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a. 4 fx


b. 6 fx


c. 8 fx


d. 10 - ANSWERS-a
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Thermal insulation shall not be installed within __________ inch(es) of recessed fixtu
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res.
a. 1⁄2 fx


b. 3⁄4 fx


c. 2 fx


d. 3 - ANSWERS-d
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A 1-inch conduit contains three 3-
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wire circuits. All conductors are #10 TW. Each circuit consist of two
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phase conductors, one grounded conductor, and one equipment grounding conducto
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r. The maximum
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ampacity of each phase conductor is__________ amps. fx fx fx fx fx fx


a. 24 fx


b. 28 fx


c. 30 fx


d. 35 - ANSWERS-a
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The volt/ampere rating of a device that consumes 14.5 amps on a 230-
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volt circuit is __________ watts.
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a. 3335 fx


b. 244.5 fx


c. 15.85 fx


d. 14.5 - ANSWERS-a
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A 208v, 3 phase heater draws 3,598 watts. How many amperes does it draw?
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a. 10 fx


b. 12 fx


c. 14 fx


d. 16 - ANSWERS-a
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A 15 or 20-
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amp receptacle shall be located within _________ feet of a roof top air conditioner.
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a. 25 fx


b. 35 fx


c. 75 fx


d. 100 - ANSWERS-a
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The maximum overcurrent protection for eight current carrying #12 THHN conductors
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xin a 1⁄2" conduit is
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_________ amps. fx


a. 10 fx

, b. 15
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c. 20
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d. 25 - ANSWERS-c
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An AC system of 50 to 1,000 volts shall be grounded if maximum voltage to ground d
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oes not exceed _______
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volts.
a. 50
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b. 100
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c. 150
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d. 200 - ANSWERS-c
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There is a 10 Hp, 230 volt, 3 phase motor, code letter G. The maximum standard rati
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ng inverse time circuit
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breaker permitted to serve as branch circuit, short circuit, and ground fault protection
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when the motor fx fx


starts the load without difficulty is _________ amps.
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a. 40
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b. 60
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c. 70
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d. 80 - ANSWERS-c
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Type 'S' adapters are installed in Edison base fuse holders ___________.
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a. For the convenience of the owner
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b. To limit the size of the fuse to be installed
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c. To increase the speed of removing the fuse once it has blown
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d. To prevent shocks when installing pennies or other fuse substitutes - ANSWERS-b
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A laundry branch circuit shall be rated at ________ amps.
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a. 15
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b. 20
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c. 25
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d. 30 - ANSWERS-b
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In a commercial building, the minimum size underground service entrance conductor
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for a 120/240 volt, 1
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phase, 200-amp service is _________.
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a. 4/0 TW aluminum
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b. 3/0 THWN copper
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c. 2/0 XHHW aluminum
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d. 2/0 XHHW copper - ANSWERS-b
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The minimum service for a one-family dwelling shall be ________ amps.
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a. 60
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b. 100
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c. 125
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d. 150 - ANSWERS-b
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Type __________ cable is not permitted for service entrance.
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a. MI
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b. MC
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c. SE
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d. UF - ANSWERS-d
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A kiln rated 4750 watts, 208 volts, 3 phase draws __________ amperes.
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a. 8.26
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b. 13.2
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c. 22.95
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