#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.