Electrical Code Questions & Verified Detailed Answers | NEC &
Michigan Electrical Code Reference/Michigan Manicurist
Practice Test comprehensive questions and verified
accurate solution (detailed & elaborated) 2025 TEST!!
There are 6 conductors in a raceway connected to 70 deg rated circuit breaker. Each wire has a
70amp load using THHN conductors. The Minimum size conductors used are #________AWG.
4, 310.15(B)(16)
Thermal insulation shall not be installed within __________ inches of recessed lighting fixtures.
3", 410.116(B)
A 1" conduit contains three 3-wire circuits or a phase system. All conductors are #10TW. Each
circuit consists of two-phase conductors and one grounded conductor and one equipment
grounding conductor. The maximum ampacity of each phase conductor is __________.
24A, 310.15(B)(16)
The volt/ampere rating of a device that consumes 14.5 amperes on a 240 volt circuit
is______________.
3480W, P=IxE. 240 x 14.5 = 3480
A 208volt, 3 phase heater draws 3,598 watts. How many amperes does the heater draw?
10A, P=E x 1.73/I. I=3598/359.84
An underwater light fixture shall be installed at least __________ inches below the water level?
18", 680.23(5)
A general-purpose receptacle shall not be installed on the_____________.
Fence - Directly south of the pool. 680.22(A)(1)
A junction box for the 120 volt wet-niche fixture shall be at least_________inches above the
ground?
4", 680.24(A)(2)(a)
A GFCI protected___________receptacle for the pump motor maybe installed on the south side
of the dwelling unit dedicated grounding type.
, dedicated receptacle, 680.22(A)(2)
A metal fence installed with-in_________feet of the pool shall be bonded.
5', 680.26(B)(7)
The feed to the wet-niche fixture shall be installed in _________?
Rigid Brass, 680.23(B)(2)(a)
A 15 or 20 amp receptacle shall be located with-in____________feet of a roof top air
conditioner?
25', 210.63
The maximum over current protection for 8 current carrying #12 THHN conductors iterm-13n a
1/2"EMT conduit is__________amps?
20A, 310.15(B)(16)
An AC system of 50 to 1000 volts shall be grounded if maximum voltage to ground does not
exceed ______________ volts.
150, 250.20(B)(1)
There is a 10HP, 230volt, 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?
70, 430.52-430.250
Type "S" adapters are installed in Edison base fuse holders___________?
To limit the size of the fuse to be installed, 240.53(B)
A laundry branch circuit shall be rated at ______________amps.
20, 210.11(C)(2)
In a commercial building the minimum size ungrounded service entrance conductor for 120/240
volt 1 phase 200 amp service is ___________.
3/0 THWN copper, 310.15(B)(16)
The minimum service for a one family dwelling shall be__________?
100A, 230.79(c)
Type _________ cable is not permitted for service entrance.