TB12 Automatic Sprinklers

Question 1

Records show that __% of all fires in sprinklered buildings are extinguished or satisfactorily held in check by the sprinkler system.

Answer 1

96

Question 2

NBFU Bulletin No. ___ suggests that “one of the first fire alarm engine companies responding….. should lay two 2 ½ “ lines into the FDC

Answer 2

270

Question 3

Normally, _____ inch lines are sufficient in sprinklered buildings

Answer 3

One and one-half

Question 4

It is suggested that companies maintain a list of sprinklered buildings in their district. This information can be obtained from the F-___s, which are filed behind the F-173s in the company files

Answer 4

F-316s

Question 5

Member who shuts off must ____ , so that it can be reopened with out delay if needed.

Answer 5

Remain at the valve

Question 6

Where are Junior Systems usually found? How many sprinklers are likely to operate?

Answer 6

Found in light hazard occupancies

Where not over 3-4 sprinklers are likely to operate.

Question 7

Junior systems are connected via domestic supply. What materials does that consist of?

Answer 7

1” brass pipe and an Electric H20 flow alarm

Question 8

A Junior system has a FDC and drain valve?

TRUE OR FALSE

Answer 8

FALSE

No FDC or Drain Valve

Question 9

Junior systems are ____ of __-__” of copper tubing fitted with small orifice. ( __”- ___”)

Answer 9

Looped

3/4”-1”

1/4” - 3/8” orifice sprinklers

Question 10

Junior system sprinklers deliver/discharge about ___ as much water as the standard one-half inch sprinkler.

Answer 10

Half as much H20 AS THE 1/2 “ sprinklers

Question 11

Junior system sprinklers are identified by a ______ extending beyond the center of deflector.

Answer 11

Pintle

Question 12

According to TB 012 Automatic Sprinkler System, a junior system sprinkler ranges in size from ____ to ____ .

Answer 12

one-fourth of an inch or three-eighths of an inch

Question 13

According to TB 012 Automatic Sprinkler System, junior system sprinklers are distinguished by a ______ extending beyond the center of the deflector. (For identification purposes only.)

Answer 13

Pintle

Question 14

According to TB 012 Automatic Sprinkler System, a “Junior System” is an inexpensive protection for light hazard occupancies where not over ___or ___ sprinklers are likely to operate.

Answer 14

3 or 4 sprinklers are to likely to operate