Training Bulletins 31-60

Question 1

TB 55- 4” Supply Hose
What is the 4” hose made out of ?

Answer 1

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

Question 2

TB 55- 4” Supply Hose
How much does the 4” hose weigh per 50’ ?

Answer 2

Hose weight is 49 lbs. per 50’ section.

Question 3

TB 55- 4” Supply Hose
What is the burst pressure of the 4” hose?
What is the proof pressure?

Answer 3

750 psi (burst pressure)
375 psi ( proof pressure)

Question 4

TB 55- 4” Supply Hose
Where do you stamp fire station numbers and section numbers?

Answer 4

Male couplings

Question 5

TB 55- 4” Supply Hose

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 5

45-degree

Question 7

TB 90- If a ff is caught in a flashover, how many feet does he have in room to escape?

Answer 7

5 feet, 2 seconds