TB 55 4” Suppy Hose Flashcards
1
Q
4” hose characteristics are:
A
1.single jacket 100% synthetic ozone resistant
2.high tensile reinforced yarn circular woven in twill configuration
3. Maximum flexibility and eliminates left hand twist
4. Polyester is for the wrap - nylon for woof
5. Yellow for high visibility
2
Q
How much does the 4” hose way?
A
49lbs per section
3
Q
Where to you put ID on 4” hose?
A
1 1/2” stencils 6” from both couplings
4
Q
What are the friction factors for 1 and 2 4” hose per 100ft?
A
11 & 42
5
Q
What is the burst pressure of 4” hose?
A
750psi
6
Q
What is the acceptance pressure of 4” hose?
A
500psi
7
Q
What is the 4 inch hose tested at per training bulletin?
A
300psi
8
Q
At what psi is 4” hose kink proof?
A
375psi
9
Q
What angle do you drive over 4” hose?
A
45 degree angle
