NEC Equipment for General Use Questions and Answers

Question 1

An electrician is installing general-use receptacles in a new dwelling unit's living room.
According to NEC 210.52(A), what is the maximum distance that any point along the floor line of any wall space can be from a receptacle outlet?

Accepted Answer

6 feet

Answer

12 feet

Answer

5.5 feet

Answer

10 feet

Question 2

Which of the following is a specifically prohibited use for flexible cords and cables according to NEC Article 400?

Accepted Answer

As a substitute for the fixed wiring of a structure.

Answer

For connection of portable lamps or appliances.

Answer

For the prevention of noise and vibration transmission.

Answer

To facilitate the frequent interchange of utilization equipment.

Question 3

A permanently connected, 1/2 hp motor-operated appliance is installed in a commercial kitchen. The circuit breaker for this appliance is in a panelboard located in a separate room and is not within sight of the appliance. According to NEC 422.31(C), what is required?

Accepted Answer

The circuit breaker must be capable of being locked in the open position.

Answer

The appliance must be cord-and-plug-connected.

Answer

A second branch circuit must be run to the appliance.

Answer

The appliance is not permitted in this configuration.

Question 4

An electrician is installing a surface-mounted incandescent luminaire with a completely enclosed lamp in a clothes closet. What is the minimum clearance required between the luminaire and the nearest point of any closet storage space according to NEC 410.16(C)?

Accepted Answer

12 inches

Answer

3 inches

Answer

6 inches

Answer

9 inches

Question 5

According to NEC 404.12, metal enclosures for switches and circuit breakers must be connected to what?

Accepted Answer

An equipment grounding conductor.

Answer

The grounded (neutral) conductor.

Answer

The main service disconnect.

Answer

A dedicated grounding electrode.

Question 6

An industrial motor controller is located 100 feet away from the motor it controls and is not visible from the motor's location. According to NEC 430.102(B), which of the following is required for the motor's disconnecting means?

Accepted Answer

A disconnecting means must be located in sight from the motor and driven machinery location.

Answer

A disconnecting means must be located in sight from the controller location only.

Answer

A disconnecting means is not required for the motor itself, only the controller.

Answer

A single, non-lockable disconnecting means can be used at the controller.

An electrician is installing general-use receptacles in a new dwelling unit's living room.According to NEC 210.52(A), what is the maximum distance that any point along the floor line of any wall space can be from a receptacle outlet?

An electrician is installing general-use receptacles in a new dwelling unit's living room.
According to NEC 210.52(A), what is the maximum distance that any point along the floor line of any wall space can be from a receptacle outlet?