Chapter 9

Cabinets or cutout boxes installed in a wet location shall be spaced ___" off the wall to which it is mounted.

1/4"

A space of not less than ___' shall be provided between the top of a switchboard and a combustible ceiling.

3

Conduits or other raceways including their fittings shall not rise more than ___" above the bottom of switchgear, switchboards, or floor mounted panelboards.

3"

The center of the grip of the operating handle of a knife switch, when in the highest position, shall not be more than ___ above the floor or working platform.

6'7"

An identified ___ is required to be securely installed between adjacent snap switches rated over 300 V.

Barrier

A(n) ___ is an overcurrent protective device with a mechanical mechanism that may manually or automatically open the circuit when an overload condition or short circuit occurs.

Circuit Breaker

Snap switch terminals marked CO/ALR are for use with ___ conductors. A. aluminum B. copper C. copper clad aluminum D. all of the above

D. all of the above

Double throw knife switches mounted vertically shall be equipped with a locking device to prevent ___from closing the blades.

Gravity

The two types of wire termination configuration for calculating wire bending space are ___.

L and S

In general, vertically mounted switches shall be ___ in the up position.

ON

A(n) ___ is a single panel or group of assembled panels with buses and overcurrent devices, which may have switches to control light, heat, or power circuits.

Panelboard

Panelboards supplied through transformers generally shall have their overcurrent protection located on the ___ side of the transformer.

Secondary

A(n) ___ is a device, with a current and voltage rating, used to open or close an electrical circuit.

Switch

A(n) ___ is a large single panel, frame, or group of assembled panels with buses, overcurrent devices, and instruments.

Switchboard

All panelboard cabinets and frames of panelboards shall be connected to an EGC

True

In general, only ungrounded conductors shall be opened by switches.

True

Switchgear, switchboards, and panelboards are installed to control light and power circuits.

True

The neutral of an electrical system is always carrying the unbalanced current of that system.

True

A surface mounted switch installed in a wet location shall be enclosed in a(n) ___ enclosure.

Weatherproof

The arrangement of busbars and conductors in switchgear or a switchboard shall be such as to avoid overheating due to ___ effects.

inductive