Deck 15: Dryer Outlet, Lighting and Receptacle Circuits for the Laundry, Powder Room, Rear Entry Hall, and Attic

Question 1

Prior to the 1996 NEC, ____ receptacles and cords were permitted. However, now it is mandatory that a separate equipment grounding conductor be installed to ground the frames of electric clothes dryers and electric ranges.

A) 3-wire
B) 16 AWG
C) 4-wire
D) listed

Answer 1

A

Question 2

For most residential electric ____, receptacles and cord sets are rated 30 amperes, 125/250 volts.

A) washers and dryers
B) clothes dryers
C) washers
D) ranges

Answer 2

B

Question 3

A powder room is considered a bathroom if it contains a(n) ____________________ and a toilet, urinal, tub, shower, bidet, or similar plumbing fixture.

Answer 3

basin

Question 4

If an electric clothes dryer or electric range is to be installed in a residence where the dryer branch-circuit wiring had been installed according to pre-1996 NEC rules, how is the dryer frame grounded?

Question 5

The special permission that was put into effect in July of 1942 allowed the neutral conductor to serve a dual purpose as the neutral conductor and the ____________________.

Question 6

NEC 210.52(F) requires a(n) ____________________ in one-family dwellings.

Question 7

NEC 210.70(A)(3) addresses ____ that are used for storage and attics that contain equipment that might need servicing, such as air-conditioning equipment.

A) powder rooms
B) crawlspace areas
C) basements
D) attics

Question 8

When running cables parallel to framing members, at least ____________________ inches must be maintained between the cable and the edge of the framing member.

Question 9

Electric washer/dryer combinations generally require a ____-ampere branch circuit similar to that required for a typical electric clothes dryer.

A) 10
B) 20
C) 30
D) 40

Question 10

The NEC requires that an appliance nameplate show ____.

A) the appliance rating in volts and amperes
B) the recommended overcurrent protection
C) the appliance connected load in volts and watts
D) either a or c

Question 11

The maximum overcurrent protection for ____ AWG copper conductors is 30 amperes.

A) 10
B) 20
C) 25
D) none of the above

Question 12

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

A) be horsepower-rated
B) disconnects all the conductors in the appliance
C) have a nema 3r enclosure when installed outdoors
D) both a and b

Question 13

Describe one accepted grounding means for the frames of electric dryers and electric ranges in new installations.

Question 14

When electric clothes dryers and electric ranges are cord-and-plug connected, the receptacle and the cord set must be 4-wire, the fourth wire being the separate equipment grounding conductor.

Question 15

A minimum load of 5500 watts (volt-amperes) or the nameplate rating of the electric clothes dryer, whichever is larger, is used when calculating the dryer load for service-entrance requirements.

Question 16

All 125-volt, single-phase, 15- and 20-ampere receptacles within ____________________ ft of the outside edge of a sink shall be GFCI protected.

Question 17

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.

A) permits
B) does not permit

Question 18

A(n) ____ is NOT an acceptable disconnecting means for appliances.

A) circuit-breaker in sight of the appliance
B) circuit-breaker or switch capable of being locked in the off position
C) horsepower-rated switch
D) attachment cord and plug

Question 19

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

A) they are run across the top of joists
B) they are run across the face of studs
C) they are installed within 7 feet of the floor or floor joists
D) all of the above