Journeyman Electrician’s Exam Journeyman Electrician's Raceway Systems 3

Question 1

Per the NEC, what is the maximum total degrees of bends permitted in a single run of conduit between pull points?

Accepted Answer

360 degrees

Answer

180 degrees

Answer

270 degrees

Answer

450 degrees

Question 2

What is the maximum support interval for Electrical Metallic Tubing (EMT) in a horizontal installation per NEC 358.30?

Accepted Answer

10 feet

Answer

6 feet

Answer

8 feet

Answer

14 feet

Question 3

How close to a box, cabinet, or conduit termination must EMT be supported, per NEC 358.30(A)?

Accepted Answer

3 feet

Answer

2 feet

Answer

4 feet

Answer

5 feet

Question 4

Which type of conduit requires expansion fittings to accommodate thermal expansion, especially in long straight runs exposed to temperature variations?

Accepted Answer

Rigid PVC (Schedule 40)

Answer

EMT

Answer

RMC

Answer

IMC

Question 5

In which of the following locations is EMT specifically NOT permitted to be installed per NEC 358.12?

Accepted Answer

Where subject to severe physical damage

Answer

Dry indoor locations

Answer

Exposed on exterior masonry walls

Answer

Encased in concrete slabs

Question 6

Per NEC Chapter 9, Table 2, what is the minimum bending radius to the centerline for 2-inch EMT conduit with conductors that do not have a lead sheath?

Accepted Answer

12 inches

Answer

8 inches

Answer

10 inches

Answer

15 inches

Question 7

What is the maximum support interval for Rigid Metal Conduit (RMC) per NEC 344.30(B)(1)?

Accepted Answer

10 feet

Answer

8 feet

Answer

12 feet

Answer

14 feet