Chapter 12&15 Final

The load for each small-appliance, branch circuit load is required to be calculated at ____.

1,500 volt-amperes

For branch circuits rated 120 volts, 20 amperes, and supplying two or more receptacles, the receptacles are permitted to be rated ____.

15 & 20 Amp 125 volts

Duplex receptacles connected to a 20-ampere, small appliance branch circuit in kitchens and dining rooms ____.

15 to 20 amp

GFCI protection can be provided for convenience receptacles serving kitchen countertop areas by ____.

GFCI CB, GFCI Recept, GFCI to protect downstream recept

Split-wiring of receptacles in kitchens and other locations where high-load appliances are used is not always practical when ____.

GFCI receptacles are used

All of the following are acceptable disconnecting means for appliances, except for ____.

a horsepower-rated switch

Which of the following 125-volt, 15- and 20-ampere receptacle(s) installed in kitchens is (are) not required to be connected to the two 20-ampere small-appliance circuits required for the kitchen and dining room area?

a recept: sink > food waste diposer, plug in a frig, gas appliance to ignite

Which of the following kitchen equipment is permitted to be connected to the two 20-ampere small-appliance circuits required for the kitchen and dining room area?

clock outlet

Receptacles rated 30 amperes are referred to as ____, and receptacles rated 50 amperes are called ____.

dryer, range

Three-wire circuits are more efficient and cost effective than two-wire circuits, because they permit ____.

fewer conductor, smaller raceways, reduced voltage drop

Improper wiring or mishandling of multi-wire branch circuits can cause ____ connected to the circuit.

overloading of the grounded conductors, destruction due to overvoltage

When an existing dryer or electric range is replaced, the NEC ____ the grounded conductor of an existing individual branch circuit to be used for grounding the appliance frame.

permits

Cord sets rated 40, 45, or 50 amperes are usually called ____, and cord sets rated 30 amperes are called ____.

range, dryer

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

sones

A 125-volt, 15- and 20-ampere receptacle installed to serve a kitchen countertop is required ____.

supplied by at least (2) 20-ampere small appliance circuits, GFCI protection

When an appliance is not marked with its maximum overcurrent protection, the branch-circuit protection device is sized according to ____.

the ampacity of the branch-circuit conductors supplying the appliance

The NECâ requires that an appliance nameplate show ____.

the appliance rating in volts and amperes, or connected in volts and watts

Counter top receptacles must be served by at least ____-ampere small appliance circuits.

two 20

The 125-volt, 20-ampere receptacles installed to serve kitchen counter tops are required to have GFCI protection ____.

under all circumstances

Since the grounded (neutral) conductor is not permitted to be used for grounding the frames of dryers, these appliances require ____ power cords when receptacle connection is used.

four-wire

Because of the dangers associated with the open neutral (grounded conductor), NEC® 300.13(B) does not permit the continuity of the ____ to depend on a receptacle.

grounded (neutral)

A "unit switch" used as a disconnecting means for an electric clothes dryer shall ____.

interrupt all ungrounded circuit conductors

Kitchen lighting ____ permitted to be supplied by the two 20-ampere small-appliance circuits required for the kitchen and dining room area.

is not

The grounded conductor of a branch circuit is permitted to serve as the equipment grounding conductor for a replacement electric dryer when all the following conditions are met, except for ____.

the branch circuit is protected by time-delay fuses

In accessible attics, exposed cables must be protected by guard strips when ____.

they are run across the top of joists, face of studs, 7 ft of floor