Journeyman Electrician Practice Exam #7 questions well verified

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Where the outer sheath of Type MI cable is made of steel _____________. A. it shall provide an adequate path to serve as an equipment grounding conductor B. a separate equipment grounding conduc ... tor shall be provided C. the grounding and grounded conductors shall be connected together D. it shall not be longer than 6 feet B. a separate equipment grounding conductor shall be provided The interior of enclosures or raceways installed underground shall be considered to be a _________ location. A. wet B. damp C. moist D. dry A. wet The continuity of the equipment grounding conductor system used to reduce electrical shock hazards for portable electrical carnival equipment shall be verified ______________. A. and recorded on an annual basis B. and recorded on a quarterly basis C. and recorded on a monthly basis D. each time the equipment is connected D. each time the equipment is connected A plate-type grounding electrode shall be installed below the surface of the earth NOT less than ________. A. 24 inches B. 30 inches C. 36 inches D. 48 inches B. 30 inches Determines the MAXIMUM allowable ampacity of a size 1/0 AWG THW copper current-carrying conductors of the same size. Ambient temperature is 86*F. A. 150 amperes B. 105 amperes C. 112 amperes D. 120 amperes D. 120 amperes In class II, Division 1, hazardous locations, where pendant mounted luminaries are suspended by rigid metal conduit (RMC) and a means for flexibility is not provided, the RMC term shall have a length of NOT more than __________. A. 12 inches B. 18 inches C. 24 inches D. 30 inches A. 12 inches Determine the MINIMUM size THW copper branch-circuit conductors required by the NEC to supply a 3-phase, continuous-duty, AC motor that has a full-load current of 70 amperes. Assume all terminations to be rated for 75C. A. 1 AWG B. 2 AWG C. 3 AWG D. 4 AWG C. 3 AWG Given: You have determined a conductor has a computed allowable ampacity of 75 amperes. What is the MAXIMUM standard ampere rating of the overcorrect protection device the NEC* permits to protect this circuit? Assume this is not a motor circuit or part of a branch-circuit supplying more than one receptacle. A. 70 amperes B. 75 amperes C. 80 amperes D. 85 amperes C. 80 amperes [Show More]

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