Journeyman Electrician’s Exam Wiring Methods and Materials

Question 1

Per NEC Chapter 9 Table 1, what is the maximum conduit fill percentage when 4 or more conductors are installed?

Accepted Answer

40%

Answer

53%

Answer

31%

Answer

60%

Question 2

Which cable type is NOT permitted for use in wet or damp locations?

Accepted Answer

Type NM cable

Answer

Rigid metal conduit (RMC)

Answer

Type MC cable

Answer

Liquidtight flexible metal conduit (LFMC)

Question 3

Per NEC Table 300.5, what is the minimum cover requirement for RMC installed beneath a one- or two-family dwelling driveway?

Accepted Answer

6 inches

Answer

12 inches

Answer

18 inches

Answer

24 inches

Question 4

Per NEC 350.30(A), what is the maximum length of flexible metal conduit (FMC) permitted when used as a luminaire whip?

Accepted Answer

6 feet

Answer

3 feet

Answer

4 feet

Answer

8 feet

Question 5

Which cable type is specifically listed and permitted for installation in a cable tray system?

Accepted Answer

Type MC

Answer

Type NM

Answer

Type SE

Answer

Type UF

Question 6

What is the minimum trade size for electrical metallic tubing (EMT) per NEC 358.20?

Accepted Answer

1/2 inch

Answer

3/8 inch

Answer

1/4 inch

Answer

3/4 inch