(1) TB 42- Smoke Detectors Flashcards

1
Q

According to a study, ______ (ionization or photoelectric?) detectors are more reliable in warning against the hazards of visible smoke build-up from the slow SMOLDERING FIRES so common to residential occupancies.

These detectors appear to be LESS PRONE to NUISANCE ALARMS.

A

Photoelectric

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2
Q

Smoke Detectors are approved to give an area of coverage equivalent to a _________.

A

25ft diameter

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3
Q

Smoke detectors:
Ionization or photoelectric?
_____ detectors are more sensitive to SMOLDERING fires, and _____ detectors are more sensitive to FLAMING fires.

A
  1. Photoelectric
  2. Ionization
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4
Q

What are the two types of smoke detectors?

A

Photoelectric and ionization

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5
Q

Six out of ten fatal home fires start between ____ p.m. and _____ a.m.

A

9:00pm and 6:00am

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6
Q

All detectors, whether they are ionization or photoelectric, can be powered by?

A

either batteries or house current.

(our Ordinance maximizes the requirement for permanently wired detectors in all multiple-dwelling occupancies.)

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7
Q

Mounting Locations for smoke detectors:

A

-Each bedroom and in the hallway or area giving access to the bedroom

-In a multi-story dwelling on each level at the top of the stairway

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8
Q

In MOST smoke detector installations, whether battery or hard-wired, the detectors ______ (are/are not?) linked together and operate independently.

A

are not

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9
Q

In order to shy away from wall heaters, kitchens, or other heat-producing appliances, a detector could be moved _____ft away from the bedroom door and still be protecting the area giving access to the bedroom.

A

12.5 ft

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10
Q

Current law in the ________ now require smoke detectors in new homes at time of construction and in existing homes at the time of sale.

A

-Building Codes

-Fire Codes

(Existing apartment hotels and hotels over 75 feet in height require smoke detectors)

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11
Q

Fire is the _______ leading cause of accident death in the United States

A

Third

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12
Q

National statistics from the U.S. Fire Administration indicate that most battery-type detectors become inoperative due to ___________.

A

dead batteries or batteries removed and not replaced.

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13
Q

Only smoke detectors approved by the _________ can be sold or installed in California.

A

California State Fire Marshal

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14
Q

Most smoke detector units may be mounted either on the CEILING or on the WALL.

Test of the two types of mounting show there is ________ (a difference/no difference?) in their effectiveness

A

no difference

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