Deck 21: Special-Purpose Outletsfood Waste Disposer, Dishwasher

Question 1

Dishwashers and kitchen waste disposers may be connected to any of the required 20-ampere small-appliance branch circuits in the kitchen.

Answer 1

False

Question 2

NEC 210.23(A)(2) limits cord-connected equipment to ____________________ percent of the branch-circuit ampere rating.

Answer 2

80
eighty

Question 3

The two general methods of connecting food-waste disposers are hard-wired and ____________________.

Answer 3

cord-and-plug connection
cord and plug connection

Question 4

Article ____, Part VI, covers equipment grounding and equipment grounding conductors.

A) 210
B) 250
C) 400
D) 422

Question 5

A duplex grounding-type receptacle is usually installed in an accessible location under the sink for plugging in the dishwasher and food waste disposer, and it does not have to be ____ protected.

A) AFCI
B) GFCI
C) assured grounding conductor
D) IDCI

Question 6

Because of the problem of people being scalded, many municipalities and states have implemented code requirements that water heater thermostats be set at not over 120 degrees F (49 degrees C).

Question 7

Small-appliance circuits are intended to serve countertops for cord-connected ____ appliances only.

A) under 1/3 horsepower
B) portable
C) fixed-in-place
D) none of the above

Question 8

Portable dishwashers are supplied with a 3-wire cord and plug. If the 3-wire plug cap is plugged into a properly connected ____________________ receptacle, the dishwasher is adequately grounded.

Question 9

Explain why a 125-volt, 15- or 20-ampere receptacle installed in an under-cabinet space to supply a dishwasher and/or food-waste disposer is not required to have GFCI protection for personnel.

Question 10

Per the specifications, the branch-circuit conductors for food waste disposers and dishwashers are ____ AWG.

A) 6
B) 12
C) 24
D) 36

Question 11

The maximum flexible cord length permitted for a kitchen waste disposer is ____.

A) 18 in. (450 mm)
B) 24 in. (600 mm)
C) 3 ft (900 mm)
D) 6 ft (1.8 m)

Question 12

A dual-element fuse sized at approximately 125% of the full-load current rating of the motor adds extra overcurrent protection to the overload protection built into a food-waste disposer.

Question 13

All motor-driven appliances must be provided with a means disconnecting the appliance from the ungrounded conductors. The branch-circuit breaker can serve as the disconnecting means if within sight of the appliance or capable of being ____________________.

Question 14

When a food-waste disposer has an integral ON-OFF switch, an additional separately installed switch ____ required.

A) is
B) is not

Question 15

Lock-off provisions for appliances must be permanently installed on the ____________________ or switch.

Question 16

The Code Article that specifically addresses electrical appliances is ____________________.