Michigan Journeyman test Questions With Complete Solutions

There are six conductors in a race way connected to 75° C rated circuit breaker. Each wire has a 70 amp load using THHM conductors. The minimum size conductors used our #_________AWG correct answer: 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures correct answer: 3 A 1 inch conduit contains three wire circuits or a phase system. All conductors are number 10 TW. Each circuit consist of two phase conductors and one grounding conductor and one equipment grounding conductor. The maximum and pasty of each phase conductor is______. correct answer: 24 amps The volt Ampere rating of a device that consumes 14.5 A on a 240 V circuit is_____. correct answer: 3480watts A 208 V, three phase heater draws 3598 W . How many campers does the heater draw correct answer: 10 The underwater light fixture shall be installed at least ________inches below the water level correct answer: 18 A general purpose receptacle shall not be installed on the_________ correct answer: Offense directly south of the pool A junction box for a 124 wet niche fixture shall be at least_______Inches above the ground correct answer: 4 A GFCI protected_______ receptacle for the pump motor May be installed on the south side of the dwelling unit dedicated grounding type correct answer: Dedicated receptacle A metal fence installed within________Feet of a pool Shall be bonded correct answer: 5 The feed to the wet niche fixture shall be installed in correct answer: Rigid brass A 15 or 20 amp receptacle Shall be located within_____Feet of a rooftop air conditioner correct answer: 25 In a commercial building the minimum size ungrounded service entrance conductor for 120 Dash 240 V single phase 200 amp service is correct answer: 3/0 thwn copper The minimum service for a one family dwelling Shall be correct answer: 100amps Type _____ Cable is not permitted for service entrance conductors correct answer: UF A comb rated 4750 W , 208 V 3 phase draws ________ amps correct answer: 13.2 Direct burial cable emerging from the ground and subject to physical damage shall be installed in_________. correct answer: Schedule 80 PVC A high impedance grounded system is limited to systems operating as _________volts or above. correct answer: 480 And expansion joint is required for non-metallic conduit when the temperature changes for -15° to 105°F, the thermal expansion for 100 feet or rigid nonmetallic conduit is________ inches correct answer: 4.87 The voltage rating for communication cable shall not be less than________volts? correct answer: 300 V