CME Special Occupancies and Equipment 3

Question 1

NEC 680.8 specifies the minimum clearance for overhead service conductors above the water surface of a swimming pool as:

Accepted Answer

22.5 feet

Answer

NEC 680.8(A) requires a minimum 22.5-foot vertical clearance for overhead service conductors above a pool's water surface to prevent contact hazards.

Question 2

NEC 680.26 requires equipotential bonding for all metal parts within what distance of the inside walls of a swimming pool?

Accepted Answer

5 feet

Answer

NEC 680.26(B) requires all metal parts within 5 feet of the inside walls of a pool to be bonded together to eliminate dangerous voltage differences.

Question 3

Under NEC Article 547, receptacles in agricultural buildings that are subject to moisture must have:

Accepted Answer

GFCI protection

Answer

NEC 547.5(G) requires GFCI protection for receptacles in areas of agricultural buildings exposed to moisture to protect against electric shock.

Question 4

Per NEC 550.32(C), the minimum ampere rating for the electrical service or feeder to a mobile home is:

Accepted Answer

100 amperes

Answer

NEC 550.32(C) mandates a minimum 100-ampere, 120/240-volt service or feeder for mobile homes to accommodate their electrical loads.

Question 5

For floating buildings under NEC Article 553, where must the disconnecting means for the feeder or service be located?

Accepted Answer

On the floating building, at the point conductors enter

Answer

NEC 553.4 requires the disconnecting means to be located on the floating building at or near the point where the conductors enter, ensuring accessible isolation.

(CME) Certified Master Electrician Practice Test

(CME) Certified Master Electrician Practice Test

CME Special Occupancies and Equipment 3