26206 Device Boxes Quiz

According to NEC Section 210.52, laundry areas require at least _____.

• one receptacle

• two receptacles

• three receptacles

• four receptacles

What size of a junction box must be used if there is one 4" conduit and two 3" conduits entering on one side of the box and exiting at a 90° angle on another side of the box? (Assume the conductor size is No. 4 AWG or larger.)

• 30"

• 48"

• 56"

• 60"

Two wires enter a box, are each connected to a terminal, and then exit again. The total conductor count is _____.

• 1

• 2

• 3

• 4

Which of the following is true regarding the installation of pull boxes?

• They are rarely worth the extra effort and expense.

• Pull boxes should be inaccessible for safety purposes.

• Properly placed pull boxes reduce conductor strain during a pull.

• Pull boxes should be located above the finished ceiling whenever possible.

Which of the following counts as two conductors when used in a box?

• Each fixture stud

• Each looped conductor over 6"

• Each looped conductor over 12"

• Each cable clamp

Which type of boxes are typically used for wall-mounted lighting fixtures?

• Aluminum boxes with threaded hubs

• NM device boxes

• Handy boxes

• Octagon and round boxes

When sizing an outlet box, how many conductors must be deducted for a switch?

• 1

• 2

• 3

• 4

Which of the following pulls requires the length of the box to be no less than eight times the trade diameter of the largest raceway?

• Straight pull

• Angle pull

• U pull

• Circle pull

What is the minimum length on a straight pull for a pull box with two 1" conduits and one 5" conduit on one wall and two 1" conduits and one 5" conduit entering the opposite wall?

• 40"

• 48"

• 56"

• 64"

The NEC® requires that all octagon boxes have a minimum depth of _____.

• 1/4"

• 1/2"

• 1-1/4"

• 1-1/2"