Training Bulletin #55 4" Supply Hose Flashcards Preview

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Flashcards in Training Bulletin #55 4" Supply Hose Deck (8)
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1

The single-jacket hose consists of a _, high tensile reinforced yarn circular-woven in a _ to maximize hose flexibility and to eliminate _.

-100 % synthetic
- "twill configuration"
- left hand twist

2

Polyester is used for _ yarns and nylon is used for _ yarns.

- "warp"
- "woof"

3

The woven reinforcement is totally encased in a matrix of _ compound using a single _ extrusion process in a one-piece construction. This process is used to eliminate the possibility of _ found in layered hoses.

- ozone resistant synthetic nitrile rubber
- "through the weave"
- delaminating

4

All 4" supply hose are provided with 4" lightweight, high strength, _, hard coated, rocker lug, male and female couplings, with 4" _ threads.

- aluminum allow
- NST

5

How much does 50' (one stick) of 4" weigh?

49 pounds

6

Exposure to sea water and contamination by most chemical substances, hydrocarbons, oils, acids, alkalies, and greases have _ effect on short or long term performance of the hose.

No

7

What is the burst pressure of 4"?

750 psi

8

The friction loss characteristics per 100' of 4" hose at 80 or 100 psi for 500 , 660, 750, 800, and 1000 GPM are what?

-500 gpm: 5 pounds
-660 gpm: 9 pounds
-750 gpm: 11 pounds
-800 gpm: 12.4 or 12 pounds
-1000 gpm: 19.1 or 19 pounds