TN LLE Raceway and Box Fill 2

Question 1

Per NEC Chapter 9, Table 1, what is the maximum conduit fill percentage for one conductor installed in a raceway?

Accepted Answer

53%

Answer

31%

Answer

40%

Answer

60%

Question 2

What is the minimum depth of a 4-inch square metal box commonly used at junction points?

Accepted Answer

2-1/8 inches

Answer

1-1/4 inches

Answer

1-1/2 inches

Answer

1-5/8 inches

Question 3

Per NEC 314.28(A)(1), what is the minimum length of a pull box for a straight pull with 2-inch conduit?

Accepted Answer

16 inches

Answer

6 inches

Answer

12 inches

Answer

24 inches

Question 4

Per NEC 314.16(B)(5), how many volume allowances does a single-gang yoke or strap with a device (switch or receptacle) count as?

Accepted Answer

Two volume allowances

Answer

One volume allowance

Answer

Three volume allowances

Answer

No volume allowance

Question 5

What is the maximum number of quarter bends (90 degrees) permitted between pull points in a conduit run per NEC 344.26?

Accepted Answer

Four (360 degrees total)

Answer

Two (180 degrees total)

Answer

Three (270 degrees total)

Answer

No limit if conduit is properly supported

Question 6

Per NEC 314.16(B)(1), how is a conductor counted for box fill if it passes straight through a box without splice or termination?

Accepted Answer

It counts as one conductor volume

Answer

It is not counted

Answer

It counts as two conductor volumes

Answer

It counts as half a conductor volume