TB 42 Single Station Smoke Detectors

Question 1

Fire is the __ leading cause of “accident death” in the U.S.

Answer 1

3RD

Question 2

__ out of 10 Americans killed by fire are killed where?

Answer 2

7 out of 10
HOME

Question 3

__ out of 10 fatal home fires start between what times?

Answer 3

9 pm-6 am

Question 4

Victims are usually dead from ___&___ long before the fire reaches them

Answer 4

smoke & poisonous gases

Question 5

current Building & Fire Code laws require smoke detectors in “New Homes” at time of __________ and in “Existing Homes” at time of ______.

Answer 5

Construction
Sale

Question 6

Existing Duplexes, apartments, condos, hotels require smoke detectors as of which date ?

Answer 6

AUGUST 1, 1981

Question 7

HIGH RISE

If Apartment Hotels and Hotels over 75 feet comply with retroactive high rise requirments of _______, smoke detector install may be delayed until what date ?

Answer 7

TITLE 19

AUGUST 1, 1982

Question 8

smoke detectors permit room air to pass through an _____ ____________ __________

Answer 8

Internal Sensing Chamber

Question 9

The Internal Sensing Chamber of a smoke detetector detects products of combustion by which two methods?

Answer 9

1. PHOTOELECTRIC
2. IONIZATION

Question 10

Which type of smoke detector projects a light source across a darkened chamber within the detector?

Answer 10

PHOTOELECTRIC

Question 11

In photoelectric smoke detectors a __________is located out of the normal light path

Answer 11

PHOTOCELL

Question 12

________ type of smoke detector uses minute amount of radioactive material.

Answer 12

IONIZATION SMOKE DETECTOR

Question 13

Plug in-Type smoke detctors fufill the Los Angeles Codes hard-wire requirment. T or F

Answer 13

FALSE

Question 14

Existing Multi-family Dwellings SHALL have smoke detectors in stalled by ______ __ ______, with the option of being battery-operated until _______ __ _______, at which they must be ______ ______ _______.

Answer 14

• AUGUST 8, 1980
• AUGUST 1, 1983
• hard wire connected

Question 15

LADWP states that the average residence is without power for only _ ______ per year.

Answer 15

3 MINUTES

Question 16

Smoke detectors may be mounted on either _____ or _____.

Answer 16

Ceiling

Wall

Question 17

Tests show that there is a difference of effectiveness between Photoelectric & Ionization Smoke Detectors. T or F.

Answer 17

FALSE

Question 18

Detectors shall be installed where?

Answer 18

One in each bedroom, or in Hallway/ Area giving access to bedroom.

Question 19

In multi-story dwelling, where should detectors be installed?

Answer 19

On each level at the TOP of the stairway.

Question 20

In multi-story dwelling, a Hallway smoke detector can NOT fufill the top of the stairway requirment. T or F.

Answer 20

FALSE.

Question 21

In MOST installations, Hard-Wired smoke detectors are linked together do Not operate independantly. T or F.

Answer 21

False.

Question 22

______ type of smoke detectors appear to be less prone to unwarranted nuisance alarms

Answer 22

Photoelectric

Question 23

About ___ years of exposure to an Ionization home smoke detector is equal to the exposure received from one Chest X-Ray.

Answer 23

70 years

Question 24

Normal background radiation increases in elevation above sea-level. The added exposure from an ionization detector is equivalent to moving ___ higher in altitude

Answer 24

16 feet

Question 25

Only smoke detectors approved by who can be sold/installed in California?

Answer 25

California State Fire Marshall Office.

Question 26

The coverage are of a smoke detector is equivalent to a ______

Answer 26

25’ diameter

Question 27

In order to shy away from wall heaters, kitchens or other heating appliances, a detector should be moved ___ away from the bedroom door.

Answer 27

12.5’ feet

Question 28

Which NFPA standard gives the minimum level of protection(12.5’) in residential occupancies?

Answer 28

NFPA Standard 74

Question 29

“________” is only the first step leading to “protection”.

Answer 29

Detection