Licensed Electrical Contractor Services, Feeders, and Branch Circuits 2

Question 1

Per NEC 230.71, the maximum number of disconnects permitted for a single service is:

Accepted Answer

6

Answer

2

Answer

4

Answer

8

Question 2

A feeder supplying a continuous load must have its overcurrent protection device rated at no less than:

Accepted Answer

125% of the continuous load

Answer

100% of the continuous load

Answer

110% of the continuous load

Answer

150% of the continuous load

Question 3

What is the minimum clearance required above a residential roof for service-entrance conductors with a slope greater than 4 inches in 12 inches?

Accepted Answer

18 inches

Answer

3 feet

Answer

8 feet

Answer

10 feet

Question 4

Which NEC article covers the installation of feeders?

Accepted Answer

Article 215

Answer

Article 210

Answer

Article 220

Answer

Article 230

Question 5

Per NEC 210.19, the minimum ampacity of branch circuit conductors must be at least what percentage of the continuous load plus the non-continuous load?

Accepted Answer

125% of continuous plus 100% non-continuous

Answer

100% of total load

Answer

115% of continuous plus 100% non-continuous

Answer

125% of total load

Question 6

Service conductors supplying a one-family dwelling must have an ampacity of at least:

Accepted Answer

100 amperes

Answer

60 amperes

Answer

150 amperes

Answer

200 amperes

Question 7

A 20-ampere branch circuit is permitted to serve receptacles with a maximum rating of:

Accepted Answer

20 amperes

Answer

15 amperes

Answer

25 amperes

Answer

30 amperes