Chapter 1/2

Where noncombustible surface material is used on walls or ceilings, outlet boxes must be mounted so that they will be set back not more than ____ from the face of the surface material.

1/4 in (6mm)

For both metallic and nonmetallic electric outlet boxes, the maximum gap between the box and the wall material is ____ in.

1/8 in

Four or fewer luminaire conductors, smaller than ____ AWG, and/or small equipment grounding conductors that originate in the luminaire and terminate in the box, need not be counted when calculating box fill.

14

An arc flash can produce temperatures of ____°F.

35,000

On an architectural plan, a circle with the letters "PS" next to it represents a ____ lighting outlet.

Ceiling mounted lampholder with pull switch

It is the ____ that is the harmful component of an electrical circuit.

Current

The NEC requires that a(n) ____ be installed at each conductor splice connection point.

box or conduit body

If a box is not flush with the finished surface (as a result of improper installation) or if paneling, drywall, tile, or a mirror is added, then install a box extender, sometimes referred to as a "goof ____."

ring

The typical height for switches is 46 in., although some homeowners will want wall switches mounted 30-36 in. so as to be easy for children to reach. T or F?

true

One of the most far-reaching NEC rules is 110.3(B), which states that equipment that is ____ shall be installed and used in accordance with any instructions included in the listing or labeling.

Listed/Labeled or both

According to ____, unused knockouts and other openings in electrical boxes and cabinets are required to be closed.

NEC 110.12 A

For on-the-job safety, ____ puts the burden of responsibility on the employer and can impose large fines for noncompliance with its safety rules.

OSHA

Electrical wall boxes should not be mounted back-to-back in walls because ____.

Sound, fire,

In order that the connections inside an outlet box remain accessible, the NEC requires that a surface extension from an outlet box cover be made using ____.

a flexible conduit only

The screw size for typical outlet boxes is No. 8-32. The larger number, 32, refers to the ____.

a. "pitch" of the thread & number of threads per inch

A ___ is a unit of an electrical system, other than a conductor, that carries or controls electric energy as its principle function.

device

Most house wiring is done using metallic boxes, along with sheathed cable Type TM. T or F?

false