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

NEC 230.71(A) permits a maximum of six disconnecting means for a service.

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

NEC 215.3 requires feeder OCPD ratings to be at least 125% 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

NEC 230.24(A) Exception allows 18-inch clearance above roofs with a slope of 4:12 or greater.

Question 4

Which NEC article covers the installation of feeders?

Accepted Answer

Article 215

Answer

Article 215 covers feeder installation requirements.

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

NEC 210.19(A)(1) requires conductors rated at 125% of the continuous load plus 100% of the non-continuous load.

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor Services, Feeders, and Branch Circuits 2