Question 1

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.

Accepted Answer

A)   permits
B)   does not permit A

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

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 D

Question 4

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

Accepted Answer

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 5

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.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

The answer of A powder room is considered a bathroom...

Question 7

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

Accepted Answer

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 8

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

Accepted Answer

The answer of All 125-volt, single-phase, 15- and 20-ampere receptacles...

Question 9

The NEC requires that an appliance nameplate show ____.

Accepted Answer

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 10

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

Accepted Answer

The answer of NEC 210.52(F) requires a(n) ____________________ in one-family...

Question 11

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 ____________________.

Accepted Answer

The answer of The special permission that was put into...

Question 12

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.

Accepted Answer

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

Question 13

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?

Accepted Answer

The answer of If an electric clothes dryer or electric...

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

The answer of Describe one accepted grounding means for the...

Question 16

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.

Accepted Answer

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

Question 17

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

Accepted Answer

The answer of When running cables parallel to framing members,...

Question 18

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.

Accepted Answer