TB 149: Residential Fire Sprinklers

Question 1

This mandate uses the NFPA ___ standard

Answer 1

NFPA 13D

Question 2

NFPA 13D Standard includes new construction of

1.

2.

3.

Answer 2

1. garages
2. patios
3. unattached structures

Question 3

NFPA 13D IS REQUIRED FOR PATIOS EXTENDING ___ FT FROM HOUSES

Answer 3

4 FT

Question 4

NFPA 13D IS REQUIRED FOR UNATTACHED STRUCTURES GREATER THAN ______.

Answer 4

200 SQ FT

Question 5

IN NFPA 13D SPRINKLERS ARE ONLY REQUIRED IN WHAT PART OF RESIDENCE?

Answer 5

LIVABLE AREAS OF HOMES

Question 6

WHAT ARE EXEMPT FROM NFPA 13D ?

Answer 6

ATTICS

OTHER COMBUSTIBLE SEALED SPACES

Question 7

PROVISIONS OF NFPA 13D DO NOT APPLY TO FACILITIES/STRUCTURES THAT _______\_OR WERE _________ _\_ ______ ___________ PRIOR TO JANUARY 1, 2011

Answer 7

EXISTED

APPROVED FOR CONSTRUCTION

Question 8

NATIONWIDE STATISTICS SHOW THAT MOST FIRES, INJURIES AND DEATH OCCUR WHERE?

Answer 8

AT HOME

Question 9

INTERNATIONAL ASSOCIATION OF FIRE CHIEFS(IAFC) REPORT THAT APPROX ______ CIVILIANS PERISH ANNUALLY FROM FIRE

Answer 9

3000

Question 10

International Association of Fire Chief (IAFC)report that nearly ____ of civilian death from fire occur in the Home

Answer 10

2/3

Question 11

Residential Fire Sprinklers are primarily “_____ _______” systems with the purpose of preventing______ and improving _______ _______ _______

Answer 11

“LIFE SAFETY”

1. FLASHOVER
2. Chances of Occupant Escapes

Question 12

Residential Fire Sprinkler Systems protect against fire generated from _____ ________ __________, with the objective of containing the fire to the ____ ____ ________.

Answer 12

SINGLE INGNITION SOURCE

ROOM OF ORIGIN

Question 13

According to National Institute of Standards (NIST) a home fire can reach deadly proportions in as little as __________, with __ to ___ before first responders arrive.

Answer 13

3 minutes

7-10 minutes

Question 15

Lightweight construction, larger homes, open spaces, fuel loads and materials contribute to what 3 things?

Answer 15

1.accelerated fire spread 2. shorter time to flashover 3.structural collapse.

Question 16

Residential sprinkler heads are more _________ ____________than traditional heads and therefore activate at earlier stages of the fire.

Answer 16

heat sensitive

Question 17

________ or _______are used, depending on head type for residential sprinklers

Answer 17

Thinner fusible links or smaller diameter bulbs

Question 18

Head temperatures range from ______ to ________degrees and cover a minimum area of ___’x___’.

Answer 18

135 to 175 12’x12’

Question 19

Extended coverage heads can cover a ___’x _____’area

Answer 19

20 ft x 20 ft

Question 20

Who “plan checks” and “approves” the installation of residential sprinklers.

Answer 20

Plumbing/Mechanical Engineering Division of Los Angeles Department of Building and Safety (LADBS)

Question 21

All components of the home systems are to be ___________ or ___________listed while the contractors performing the installation need to be licensed and manufacturer certified.

Answer 21

Underwriter Laboratory (UL) or Factory Mutual (FM)

Question 22

Water supply can be obtained from a variety of sources. They include:

Answer 22

domestic water supply elevated tank pressure tank stored source well with an adequate pump.

Question 23

Most home systems in the City are connected to the ___________ __________ ______

Answer 23

Domestic water supply

Question 24

Piping beyond the street shut- off valve SHALL be installed in such a manner that the supply to the sprinklers SHALL …..

Answer 24

not be turned off when the domestic system is being serviced (domestic water can be isolated).

Question 25

The valve on the street will shut off what ?

Answer 25

both the domestic and sprinkler water supply

Question 26

Shut-off/control valves are usually located in the \_\_\_\_\_\_\_\_\_\_\_or on \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Answer 26

Garage the side of the house

Question 27

Identification signs for shut-off/control valves are required by

Answer 27

LADBS

Question 28

the minimum size of sign and lettering for Shut-off/control valves is \_\_\_\_\_\_\_\_\_\_\_\_

Answer 28

not regulated

Question 29

though not mandatory, \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_are highly encouraged by LADBS and are installed on most residential systems.

Answer 29

Bell (Water Flow) alarms,

Question 30

There are a variety of piping materials that can be used for residential systems. These include:

Answer 30

black pipe copper pipe chlorinated polyvinylchloride (CPVC) polybutylene (PB) schedule 40 steel thin walled steel.

Question 31

Most all of the new systems in the City use\_\_\_\_\_\_ due to cost, fabrication time, fire resistiveness, connectability to domestic water and less friction loss.

Answer 31

chlorinated polyvinylchloride (CPVC)

Question 32

CPVC is a lightweight,\_\_\_\_\_\_\_\_\_ colored rigid plastic pipe.

Answer 32

Orange

Question 33

LADBS requires a (minimum) water demand capable of flowing\_\_\_\_\_ heads for a period of\_\_\_\_\_\_ minutes.

Answer 33

2 heads 10 minutes

Question 34

Residential sprinkler systems in Los Angeles are usually\_\_\_\_\_\_ systems and don’t require the use of \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_due to our mild climate.

Answer 34

Wet systems Anti-freeze solutions

Question 35

All piping technologies must pass rigorous \_\_\_\_\_\_\_\_\_\_\_\_\_prior to approval for use in sprinkler systems.

Answer 35

fire/heat testing

Question 36

Home sprinkler piping is installed in the \_\_\_\_\_

Answer 36

Attic

Question 37

A greater vulnerability to heat is that of the piping _________ and \_\_\_\_\_\_\_\_\_\_\_. If these components are exposed, they may loosen/expand and cause the pipe to\_\_\_\_ or \_\_\_\_\_\_\_, reducing the effectiveness of the system.

Answer 37

Hangers & Straps sag or drop

Question 38

residential heads are installed in ________ \_\_\_\_\_\_\_\_ ONLY and not in attics.

Answer 38

livable spaces

Question 39

Residential sprinklers are not subject to \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_and would only be inspected when construction is complete.

Answer 39

Chief’s Regulation No.4 testing

Question 40

After the installation receives its final approval, the maintenance and operability becomes the responsibility of who?

Answer 40

Homeowner

Question 41

Sometimes ______ \_\_\_\_\_\_\_\_or the sprinkler heads themselves are ________ \_\_\_\_\_\_\_\_which can hamper the activation of the heads.

Answer 41

cover plates painted over

Question 42

\_\_\_\_\_\_\_\_\_\_ & \_\_\_\_\_\_\_\_\_\_can, over time, decrease pressure and volume.

Answer 42

Expansion of population and construction

Question 43

A decrease in \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_can occur over the years.

Answer 43

inside diameter of supply lines

Question 44

The identification signs for shutt-off valves are inspected only at\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_, therefore might be missing, faded or covered by foliage.

Answer 44

the time of the final inspection

Question 45

If difficulty locating the shut-off valve occurs, shut the water off where ?

Answer 45

at the street

Question 46

A __________ \_\_\_\_\_\_\_\_is used for connecting the joints when Chlorinated polyvinylchloride (CPVC) being installed.

Answer 46

solvent cement

Question 47

As of ______ \_\_ ________ the State of California is requiring the installation of residential fire sprinklers in all new one and two family dwellings and manufactured homes.

Answer 47

JANUARY 1, 2011