Question

A 15 or 20 amp branch circuit shall be permitted to supply _____ loads. A. lighting B. utilization C. both D. neither

NMS cable shall be permitted to be used in storage battery rooms true or false

the earth shall not be considered a effective ground fault path true or false

time switches shall be of the enclosed type or mounted on suitable enclosures true or false

the center grip of the operating handle of any switch or circuit breaker when the in the highest position shall not be more than 67" from the floor or platform true or false

heating cable shall be used with metal lath ceilings true or false

infrared lamps rated over 300 watts shall not be used as screw shell lamp holders unless the lamp holders are identified for such use true or false

A 20 amp branch circuit supplying AC is not permitted to supply lighting outlets true or false

Answer 1

1. Answer :- both loads

the rating of any one cord and plug connected utilization equipment not fastened in place shall not exceed 80 percent of the branch circuit ampere rating. The total rating of utilization equipment fastened in place , other than luminaries, shall not exceed 50 percent of the branch circuit ampere rating where lighting units, cord and plug connected utilization equipment not fastened in place, or both, are also supplied.

2. Answer :- false

the NMS cable shall not be permitted to battery storage rooms. Because, the non metallic sheath cable can be change its property. And there will be a chance to get a fault. So the NMS cable shall not be permitted to the battery storage rooms

3. Answer :- true

The safely carrying the maximum ground fault current likely to be imposed on it from any point on the wiring system where a ground fault may occur to the electrical supply source. So, the earth shall not be considered as an effective ground fault current path.

4. Answer :- true

time switches shall be of the enclosed type or mounted on the suitable enclosures, a barrier shall be used around energized parts to prevent operator exposure when making manual adjustments or switching.

5. Answer :- true

the center grip of the operating handle of any switch or circuit breaker when in the highest position shall not be more than 6 feet 7 inches.

6. Answer :- false

the heating cable shall not be used with metallic lath ceilings.

7. Answer :- false

here, if the rating is more than 300 watts, we should use screw shell lamp holders.

8. Answer :- false

the 20 amp branch circuit supplying AC is permitte to supply lighting outlets.