Electrician Wiring Methods and Materials 2

Question 1

What is EMT commonly called in the field?

Accepted Answer

Thin-wall conduit

Answer

Rigid conduit

Answer

Flex conduit

Answer

Liquid-tight conduit

Question 2

What is the purpose of a conduit body (LB, LL, LR)?

Accepted Answer

To change direction and provide access to conductors

Answer

To splice conductors

Answer

To protect conductors from water

Answer

To ground the conduit system

Question 3

How is armored cable (Type AC) different from metal-clad cable (Type MC)?

Accepted Answer

MC has an aluminum bonding strip; AC uses an internal bare wire that provides fault return

Answer

AC has an aluminum bonding strip; MC does not

Answer

AC uses aluminum wire; MC uses copper

Answer

They are identical

Question 4

What is the minimum bending radius for 1-inch EMT?

Accepted Answer

6 inches

Answer

4 inches

Answer

5 inches

Answer

8 inches

Question 5

Which wiring method is specifically designed for use in wet or damp locations exposed to weather?

Accepted Answer

UF cable

Answer

NM cable

Answer

AC cable

Answer

FMC

Question 6

What is the maximum number of 90-degree bends allowed in a single conduit run between pull points?

Accepted Answer

4

Answer

2

Answer

3

Answer

6