Journeyman Electrician Practice Exam #7(100% Accurate)

Journeyman Electrician Practice Exam
#7(100% Accurate)

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 conductor shall be provided



C. the grounding and grounded conductors shall be connected together



D. it shall not be longer than 6 feet - ANSWERB. 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 - ANSWERA. 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 - ANSWERD. 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 - ANSWERB. 30 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 75*C.



A. 1 AWG



B. 2 AWG



C. 3 AWG



D. 4 AWG - ANSWERC. 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.