Michigan practice test actual questions and answers 2025 approved.

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. - correct answers4, 310.15(B)(16) Thermal insulation shall not be installed within __________ inches of recessed lighting fixtures. - correct answers3", 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 __________. - correct answers24A, 310.15(B)(16) The volt/ampere rating of a device that consumes 14.5 amperes on a 240 volt circuit is______________. - correct answers3480W, P=IxE. 240 x 14.5 = 3480 A 208volt, 3 phase heater draws 3,598 watts. How many amperes does the heater draw? - correct answers10A, P=E x 1.73/I. I=3598/359.84 An underwater light fixture shall be installed at least __________ inches below the water level? - correct answers18", 680.23(5) A general-purpose receptacle shall not be installed on the_____________. - correct answersFence - 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? - correct answers4", 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. - correct answersdedicated receptacle, 680.22(A)(2) A metal fence installed with-in_________feet of the pool shall be bonded. - correct answers5', 680.26(B)(7) The feed to the wet-niche fixture shall be installed in _________? - correct answersRigid Brass, 680.23(B)(2)(a) A 15 or 20 amp receptacle shall be located with-in____________feet of a roof top air conditioner? - correct answers25', 210.63 The maximum over current protection for 8 current carrying #12 THHN conductors iterm-13n a 1/2"EMT conduit is__________amps? - correct answers20A, 310.15(B)(16) An AC system of 50 to 1000 volts shall be grounded if maximum voltage to ground does not exceed ______________ volts. - correct answers150, 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? - correct answers70, 430.52-430.250 Type "S" adapters are installed in Edison base fuse holders___________? - correct answersTo limit the size of the fuse to be installed, 240.53(B) A laundry branch circuit shall be rated at ______________amps. - correct answers20, 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 ___________. - correct answers3/0 THWN copper, 310.15(B)(16) The minimum service for a one family dwelling shall be__________? - correct answers100A, 230.79(c) Type _________ cable is not permitted for service entrance. - correct answersUF, 340,12(A) A kiln rated 4750 watts, 208volt 3 phase draws __________ amps. - correct answers13.2A. I=P/E x 1.73 Direct burial cables emerging from the ground and subject to physical damage shall be installed in __________. - correct answersSchedule 80 PVC, 300.5(B)(1-4) A high impedance grounded system is limited to systems operating as ____________ volts or above? - correct answers480V, 250.36 An expansion joint is required for nonmetallic conduit when the temperature changes for -15 deg to 105 deg F, the thermal expansion for 100 feet or rigid nonmetallic conduit is _____________ inches. - correct answers4.87, 352.44 The voltage rating of communication cables shall not be less then ____________ volts? - correct answers300 volts, 800.179 The direction of rotation of a 3 phase motor can be reversed by interchanging any ______ leads? - correct answers2 A __________ receptacle may be included on the small appliance branch circuit? - correct answerselectric clock- gas range, 210.52(B)(2)(exp 112) A light fixture that weighs more than ________ pounds shall be supported independently of the fixture junction box. - correct answers50#, 314.27(A)(2) Disconnecting means shall be provided on the supply side of all cartridge fuses of any voltage where? - correct answersAccesible to other than qualified persons, 240.40 Furnances shall be supplied by a __________ branch circuit? - correct answersIndividual, 422.12 A screw connecting the natural bar or a grounded system to the service equipment enclosure is call the ____________? - correct answersmain bonding jumper, 250.20(B)-250.28(B) The minimum size rigid metal conduit for a commercial service rated for 150 amps 120/240 volt 3-wire single phase using THWN wire is__________? - correct answers1 1/2", Chapter 9 Table 4 and 5 Round boxes shall not be used where conduits or connectors fasten to the _______ of the box. - correct answersside, 314.2 In a house, a garbage disposal may be installed with a cord and attachment plug if the cord is _______________. - correct answersNo less than 18"- No more than 36", 422.16(B)(1)(1) Direct-burial cables rated above ___________ volts shall be shielded. - correct answers2000 volts, 310.10(F) When 2 grounded rods are installed, they shall be separated by a minimum of ______________feet. - correct answers6', 250.53(A)(3) info note The minimum vertical clearance for service drop conductors above a pedestrian sidewalk is _______________ feet. - correct answers10', 230.24(B)(1) The inspection authority shall be notified not less than ________________ hours before an inspection is needed. - correct answers24 hours, Michigan electrical code part 8 Fixed lighting units may be on a 30 amp branch circuit if they are _____________ duty lamp holders. - correct answersHeavy, 210.23(B) Boxes used in the floor shall be _______________? - correct answersListed for the installation, 314.27(B)(exc) A receptacle for laundry equipment shall be located within ________ feet of the intended location. - correct answers6', 210.50(C) Type __________ insulated conductors maybe used in direct burial applications. - correct answersUSE, 338.10(B)(4)(b) Edison based fuses shall not exceed ____________ amperes. - correct answers30A, 240.51(A) The maximum distance between supports for 1" rigid nonmetallic conduit is ______________. - correct answers3 feet, 352.30(A). 352.30 table The smallest size conductor for a ground ring is ________ AWG copper. - correct answers#2, 250.52(A)(4) A single non-motor operated appliance of 13.4 amps shall have overcurrent protection not to exceed _________ percent of appliance rating. - correct answers150, 472.11(E)(3) A metal light pole must have a accessible hand hole not less than _______________. - correct answers2" x 4", 410.30(B)(1) A AC general use snap switch used to control a motor load shall not exceed __________% of the ampere rating of the switch at its rated voltage. - correct answers80, 404.14(A)(3) MI cable shall be secured within ______ inches of a panel. - correct answers6", 332.30 Auxilary gutters shall not contain more than _____________ current carrying conductors, without derating. - correct answers30, 366.22(A) The minimum dimensions for a concrete-encased steel reinforcing bas electrode is ______________ feet in length and _________ in diameter. - correct answers20", 1/2". 250.52(A)(3)(1) An electrical device which consists of a frame, plunger and coil and is used to create a push or pull action is called a _____________? - correct answerssolenoid The ampacity of a #6 AWG copper THHN conductor terminated in a switchboard rated at 75 deg is ______________ amps. - correct answers65, 110.14. 310.15(B)(16) In a non-metallic box, not larger than 2 1/4' x 4", cable clamps are not needed if the NM cable is stapled with in ____________ inches of the box. - correct answers8", 314.17(A)(exc) Branch circuits larger than _____________ amps shall supply only non-lighting loads. - correct answers50, 210.18(exp) The maximum number of #6 AWG THW conductors allowed in 1" PVC Sch 40 conduit is ______________? - correct answers4, annex C table 11 The code requires ____________ cubic inches of free space for each #10 wire in an outlet box. - correct answers2.5, 314.16(B) The maximum number of switches permitted to disconnect a service is _____________. - correct answers6, 230.71(A) The minimum size conductor that maybe installed is parallel is ______________ AWG? - correct answers1/0, 310.10(H)(1) The ampacity of NM cables is based on the ____________ deg column of Table 310.15(B)(16). - correct answers60, 334.80 Short sections of ferrous metal raceway used for physical protection of the grounding electrode conductor shall be bonded at both ends to the _______________. - correct answersgrounding electrode conductor, 250.64(E)(1) A feeder in a single-family dwelling supplies a load pf 75 amps of electrical space heating and 25 amps of air conditioning(cooling). The required capacity of the feeder is ____________ amperes? - correct