Journeyman Electrician Practice Test Questions With Verified Answers

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 Thermal insulation shall not be installed within __________ inch(es) of recessed fixtures. a. 1⁄2 b. 3⁄4 c. 2 d. 3 - Answer 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 - 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 conditioner. a. 25 b. 35 c. 75 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 inverse 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. a. 40 b. 60 c. 70 d. 80 - Answer c Type 'S' adapters are installed in Edison base fuse holders ___________. a. For the convenience of the owner b. To limit the size of the fuse to be installed c. To increase the speed of removing the fuse once it has blown d. To prevent shocks when installing pennies or other fuse substitutes - Answer b A laundry branch circuit shall be rated at ________ amps. a. 15 b. 20 c. 25 d. 30 - Answer b In a commercial building, the minimum size underground service entrance conductor for a 120/240 volt, 1 phase, 200-amp service is _________. a. 4/0 TW aluminum b. 3/0 THWN copper c. 2/0 XHHW aluminum d. 2/0 XHHW copper - Answer b The minimum service for a one-family dwelling shall be ________ amps. a. 60 b. 100 c. 125 d. 150 - Answer b Type __________ cable is not permitted for service entrance. a. MI b. MC c. SE d. UF - Answer d A kiln rated 4750 watts, 208 volts, 3 phase draws __________ amperes. a. 8.26 b. 13.2 c. 22.95 d. 39.7 - Answer 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 - Answer a A high impedance grounded systems are limited to systems operating at __________ volts or above. a. 120 b. 240 c. 277 d. 480 - Answer d