Electrician National Electrical Code (NEC) 2

Question 1

Per the NEC, what is the minimum headroom clearance required in front of electrical panels?

Accepted Answer

6 feet

Answer

4 feet

Answer

5 feet

Answer

6.5 feet

Question 2

What is the NEC requirement for the minimum working space depth in front of a 120/240V residential panel?

Accepted Answer

30 inches

Answer

18 inches

Answer

24 inches

Answer

36 inches

Question 3

Which NEC article covers swimming pools, fountains, and similar installations?

Accepted Answer

Article 680

Answer

Article 410

Answer

Article 500

Answer

Article 700

Question 4

According to the NEC, what is the maximum voltage drop allowed for branch circuits serving general lighting and receptacle loads?

Accepted Answer

3%

Answer

1%

Answer

2%

Answer

5%

Question 5

Under the NEC, AFCI protection is now required in which residential room?

Accepted Answer

Bedroom

Answer

Garage

Answer

Bathroom

Answer

Utility room

Question 6

The NEC defines a 'feeder' as all circuit conductors between what two points?

Accepted Answer

Main panel and branch circuit overcurrent device

Answer

Service entrance and main panel

Answer

Branch circuit device and outlet

Answer

Transformer and service entrance