Exam (elaborations)
JOURNEYMAN PRACTICE TEST
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JOURNEYMAN PRACTICE TEST
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JOURNEYMAN PRACTICE TESTThere 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 - Answers -a
Thermal insulation shall not be installed within __________ inch(es) of recessed
fixtures.
a. 1⁄2
b. 3⁄4
c. 2
d. 3 - Answers -d
A 1-inch conduit contains three 3-wire circuits. All conductors are #10 TW. Each circuit
consist of two
phase conductors, one grounded conductor, and one equipment grounding conductor.
The maximum
ampacity of each phase conductor is__________ amps.
a. 24
b. 28
c. 30
d. 35 - Answers -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 - Answers -a
A kiln rated 4750 watts, 208 volts, 3 phase draws __________ amperes.
a. 8.26
b. 13.2
c. 22.95
d. 39.7 - Answers -b
Direct burial cables emerging from the ground and subject to physical damage shall be
installed in _________.
a. Rigid metal conduit
b. Electrical metallic tubing
c. Surface metal raceway
d. Flexible Liquidtight metal conduit - Answers -a
, A high impedance grounded systems are limited to systems operating at __________
volts or above.
a. 120
b. 240
c. 277
d. 480 - Answers -d
An expansion joint is required for nonmetallic conduit. When the temperature changes
from -15° to 105°
Fahrenheit, the thermal expansion for 100 feet of rigid nonmetallic conduit is _________
inches.
a. 3.65
b. 4.26
c. 4.87
d. 5.27 - Answers -c
The voltage rating of communications cables shall not be less than ________ volts.
a. 50
b. 150
c. 300
d. 600 - Answers -c
The direction of rotation of the rotor for three-phase motors can be reversed by
interchanging any ________
leads.
a. 2
b. 3
c. 4
d. 6 - Answers -a
A(n) ___________ receptacle may be included on the small appliance circuit.
a. Water pump
b. Electric clock
c. Smoke detector
d. Garage door opener - Answers -b
A light fixture that weighs more than _________ pounds shall be supported
independently of the fixture box.
a. 15
b. 25
c. 30
d. 50 - Answers -d
Disconnecting means shall be provided on the supply side of all cartridge fuses of any
voltage where _______.
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