TB#55 4-inch Supply Hose

Question 1

This single-jacket hose consists of a 100% __________, high tensile reinforced yarn circular-woven in a “_____ configuration” to maximize hose flexibility and to eliminate left hand twist

Answer 1

Synthetic Twill

Question 2

Polyester is used for “______” yarns and nylon is used for “______” yarns.

Answer 2

Warp Woof

Question 3

The woven reinforcement is totally encased in a matrix of ozone resistant synthetic nitrile rubber compound using a single “___________ ___ _________” extrusion process in a one-piece construction.

Answer 3

Through the Weave

Question 4

Hose weight is ___ lbs. per 50’ section.

Answer 4

49

Question 5

Hose color is “_______ __________” yellow and is totally impregnated throughout the rubber compound making up the liner and cover.

Answer 5

High visibility

Question 6

Hydrostatic test pressures; burst pressure is (minimum) ___ psi acceptance.

Answer 6

750

Question 7

Hydrostatic test pressure (minimum) _____ psi service test pressure.

Answer 7

500

Question 8

Hydrostatic test pressure ___ psi kink

Answer 8

300

Question 9

Hydrostatic test proof pressure ____ psi.

Answer 9

375

Question 10

Friction loss per 100’ of 4” hose at 100 psi flowing 500gpm is ____ lbs.

Answer 10

5

Question 11

Friction loss per 100’ of 4” hose at 100 psi flowing 800 gpm is ____ lbs.

Answer 11

12.4

Question 12

Friction loss per 100’ of 4” hose at 100 psi flowing 1000 gpm is ____ lbs.

Answer 12

19.1

Question 13

Friction loss per 100’ of 4” hose at 100 psi flowing 1250 gpm is ____ lbs.

Answer 13

29.5

Question 14

Friction loss per 100’ of 4” hose at 100 psi flowing 1500 gpm is ____ lbs.

Answer 14

42.3

Question 15

Friction loss per 100’ of 4” hose at 100 psi flowing 2000 gpm is ____ lbs.

Answer 15

74.5

Question 16

________ ____________ shall cause all 4” nitrile hose, bypasses and suctions to be tested annually using fire apparatus pumps.

Answer 16

Station Commander

Question 17

Hose shall also be __________ before being placed on apparatus when new or when returned from shops after being repaired.

Answer 17

Tested

Question 18

To test, lay out a maximum of ___’ of hose to one pump outlet. Pressurize to ____ psi for __ minutes.

Answer 18

300 300 5

Question 19

For Annual hose test complete and forward a ______ and make a journal entry.

Answer 19

F-129

Question 20

Hose that has sustained damage of any sort should be sent to __________ & ____________ as per the instructions for hose needing repair or replacement in _________ ___

Answer 20

Supply Maintenance 3

Question 21

Hose shall be identified with fire station number and section numbers stamped on the ______ couplings.

Answer 21

Male

Question 22

Stamp the numbers near a _____ to prevent it from rubbing off

Answer 22

Lug

Question 23

Upon receipt, the hose shall be stenciled with the station numbers. This number shall be applied lengthwise, with ______ “ stencils, starting ___ inches from both couplings.

Answer 23

1 1/2 6

Question 24

Hose shall be rolled so that the _________ ____________ shows.

Answer 24

Station Number

Question 25

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

Answer 25

45