week 4 residential part 1

One of the most far-reaching NEC rules is 110.3(B), which states that _____ equipment shall be installed and used in

listed or labeled

in some instances, particularly in homes with _____, the architect might specify strip fluorescent or LED luminaries under the kitchen cabinets.

little outdoor exposure

All GFI devices in a garage are required to be readily accessible so that they may be tested at least _______, as required in manufacturers' instructions

monthly

To estimate to total load for a dwelling, the ______ of the dwelling must be calculated

occupied floor area

Cord sets rated 30 amps are referred to as dryer cords, and cord sets rated 40, 45, 50 amp are referred to as ____ cords

range

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

Circuits supplying wall receptacles outlets for lighting loads are generally 15-amp circuits but are permitted by the code to be _____ amps

20

An arc flash can produce temperatures of ____°F.

35,000

Most public service commissions require that the voltage for residential services be held to _____ percent of the normal voltage as measured at the service point

5

Circuits rated 15 amps supplying two or more receptacle shall not contain receptacle rated over ______ amps

15

If low-voltage lighting products are market for use in damp or wet locations, the maximum voltage rating is _____ volts unless live parts are made inaccessible to contact during normal use

15

The recommended approach to provide adequate lighting in a residential garage is to install one ______ watt lamp or equivalent compact fluorescent or LED lamp on the ceiling above each side of an automobile

100

Good color retention in the kitchen area can only be achieved by using incandescent lamps

False

In each separate unfinished basement area that is not intended to be "lived in," at least one 125-volt, single phase, 15 or 20 amp receptacles must be installed, but it does not have to be GFCI protected

False

LOTO is the physical restraint of all hazardous energy sources that supply power to a piece of equipment

False

Quite often, a community will have a "homeowners only" license for electricians and contractors that limits their activity to working on wiring on houses only

False

The 120-volt major appliances such as food waste disposers are permitted to be connected to the 20-amps small-appliance branch circuits that serve the receptacles above the kitchen countertop

False

The NEC states that fixed cooking appliances that are fastened in place may be connected to 20 or 30 amp branch circuits

False

The ampacity of a conductor must be less than the rating of the overcurrent device protecting that conductor

False

The most important purpose of NEC is the practical safeguarding of property from hazards arising from the use of electricity

False

In most residential dishwashers, the motor and the booster heater operate at the same time

True

The international residential code requires indoor stairways to have lighting that will illuminate the landings and treads, and that the lighting shall be located in the immediate vicinity of each landing at the top and bottom of the stairs

True

Track lighting loads are considered to be part of the general lighting load for residential installations, based on 3 volt amp per sq. foot

True

All receptacle installed in a wet location must have an enclosure that is weatherproof, whether or not

an attachment plug cap is inserted

The NEC defines a ______ as "the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s)

branch circuit

Which of the following is not included when calculating the useable area of a dwelling to compute the required lighting load

crawl space

It is the _____ that is the harmful component of an electrical circuit

current

Continuous feed food waste disposers are usually controlled by a ____ -pole wall switch conveniently located above the countertop

single

The sound level rating used to define fan noise is expressed in ____.

sone

The recognized definition of a habitable room as a room in residential occupancy used for living, sleeping, cooking, and eating, but excluding bath, _____, and corridors

storage and service area

Each installation for a physically challenged person must be based on______

the specific needs of the individual who will occupy the home

If the receptacle that serve kitchen countertops have been wired according to the NEC, they would be supplied by at least _____ amp, small appliance branch circuits

two 20

Countertop receptacles must be supplied by at least ____small appliance branch circuits.

two 20-amps

Cables and insulated conductors installed in underground raceways shall be listed for use in

wet locations

Thermoset insulation

will char and crack if heated above its rated temperatures