(2) TB 55 - 4-Inch Supply Hose

Question 1

4” Supply Hose

Single-jacket hose consists of a 100% synthetic, high tensile reinforced yarn circular-woven in a “TWILL configuration” to maximize HOSE FLEXIBILITY and to __________.

Answer 1

eliminate the LEFT hand twist.

Question 2

Hose weight is _____ lbs. per 50’ section.

Answer 2

49lbs

Question 3

The 4” nitrile supply hose has a propensity to kink. Obvious kinks and bends should be removed PRIOR to loading with water.

Pressurizing the hose will not remove most kinks, but may make the problem ________.

Answer 3

worse

Question 4

If the 4” hose line requires manipulation after it has been loaded, grasp the line from the ________(outside/inside/bottom/top?) of the curve or bend using a proper “hose grip” to lift or move.

Answer 4

-Outside

(Pinching hazard if grasped inside the curve)

Question 5

Station Commanders shall cause all 4” nitrile hose, bypasses and suctions to be tested _______ using fire apparatus pumps.

Answer 5

Annually

Question 6

Besides annually, when shall hose be tested?

Answer 6

-when new

-returned from repair

Question 7

For Annual hose test, complete and forward a F-_____ and make a journal entry.

Answer 7

F-129
(One-twenty-nine = Test-a-hose-line)

Question 8

Due to the construction of this hose (synthetic nitrile rubber), a thorough drying after use is ________.

After each use, scrub the outer jacket to free it of dirt, fire debris and any contaminants. Drain water from inside of hose, then reload onto apparatus.

Answer 8

not necessary

Question 9

Loading the hose onto the apparatus should be done in a manner that minimizes _________.

Answer 9

air in the line.

(Load in rolled position)

Question 10

Upon receipt of new hose, the hose shall be stenciled with the station numbers.

This number shall be applied lengthwise, with _____ inch stencils, starting _____ inches from both couplings.

Answer 10

1-1/2” stencil starting 6 inches from couplings

Question 11

If it is absolutely necessary to drive over the 4” nitrile hose, it is preferable that the hose is approached at a _______ so that each tire passes over the hose independently.

Answer 11

45-degree angle

(making sure not to accelerate with a driving wheel in contact with the hose.)

Question 12

Do not drive over couplings at any time.

What can happen if you drive over a 4” coupling?

Answer 12

Will get caught between tires of duals and cause severe damage to hose