Deck 22: Special-Purpose Outlets for the Bathroom Ceiling Heatventlights K J, the Attic Fan L, and the Hydromassage Tub a

Question 1

To determine the minimum amount of CFM needed, multiply the square footage of the house by four.

Answer 1

False

Question 2

The NEC requires GFCI protection for ____.

A) hydromassage tubs and all their associated electrical components
B) all receptacles located within 15 ft of the inside wall of a hydromassage tub
C) lighting fixtures located within 5 ft of the inside wall of a hydromassage tub
D) both a and b

Answer 2

A

Question 3

Never connect the green equipment grounding conductor to the ____________________ branch circuit conductor.

Answer 3

grounded
white

Question 4

Calculate the current rating of a 1,500-watt heat/vent/light unit for a residential bathroom connected to a 120-volt circuit (ignoring power factor).

Question 5

What is a humidistat?

Question 6

Bathroom exhaust fans, vents for clothes dryers, and similar high-humidity sources are never to be vented directly into the ____________________ or other dead spaces.

Question 7

The NEC considers fixed electric space heating to be a continuous load and the rating of the overcurrent device must not be less than 125 percent of the continuous load. What is the rating of the branch circuit for a 1500-watt space heater on a 120-volt circuit?

Question 8

NEC 300.3(B) states that all conductors of the same circuit and, where used, the neutral and all equipment grounding conductors shall be contained within the same ____.

A) raceway
B) cable tray
C) trench, cable, or cord
D) all of the above

Question 9

Whole house vinyl wraps (____) stop airflow through wall cavities, as well as holding out wind-driven rain from getting behind wood, vinyl, brick, and stucco siding.

A) Vinyk
B) Vinawrap
C) Tywrap
D) Tyvek

Question 10

A hydromassage tub is a(n) ____________________ bathtub equipped with a recirculating piping system, pump and associated equipment.

Question 11

Overload protection prevents an exhaust fan motor from burning out if it ____ for any reason.

A) stalls
B) overheats
C) runs too fast
D) both a and b

Question 12

Exhaust fans mounted into end gables or roofs of residences are available with an adjustable temperature control on the ____ of the fan.

A) base
B) frame
C) inside
D) none of the above

Question 13

The NEC allows which of the following disconnecting means for fixed appliances not over 300 volt-amperes or 1/8 horsepower?

A) branch-circuit breaker
B) attachment plug cap
C) separate disconnect switch
D) all of the above

Question 14

NEC 424.3(B) considers fixed electric space heating to be a continuous load.

Question 15

For what purpose are pilot-light switches commonly used?

Question 16

The heat/vent/light is controlled by four switches, one switch each for the heater, the light, the exhaust fan, and the ____________________.

Question 17

Exhaust fan ventilating capability is rated in ____.

A) AMD
B) CFM
C) MRP
D) CMA

Question 18

According, to NEC 250.142(B), NEVER ground an appliance to the ____ grounded circuit conductor.

A) red
B) white
C) blue
D) green