Hydraulic Handouts

Question 1

What is the opening diameter of the solid stream tip on the high-rise nozzle used by GFD?

Answer 1

D. 15/16 inch

Hydraulic Handout pg. 6

Question 2

During relay pumping operations incoming pressure from one pumper to the next should never drop below:

Answer 2

D. 20 psi

Hydraulic Handout pg. 6

Question 3

The field method for figuring fire flow is:

Answer 3

C. Length times width, divided by 3

Hydraulic Handout pg. 7

Question 4

When pumping a sprinkler system with 9 discharge heads on the fifth floor, what is your PDP?

Answer 4

A. 150 psi

Hydraulic Handout pg. 7

Question 5

If water is encased within a pipe and a pressure of 125 psi is applied by a pump at the base of the pipe, the water will fill the pipe to the height of?

Answer 5

D. 287.5 Feet

Hydraulic Handout pg. 2

Question 6

How long would it take to cover a gasoline spill that measures 30 feet by 30 feet, flowing 100 gpm foam solution.

Answer 6

A. 54 seconds

Hydraulic Handout pg. 6

Question 7

Using the discharge formula, what is the exact GPM for 1 1/8 inch solid stream handline?

Answer 7

E. 264.6 GPM

Hydraulic Handout pg. 3

Question 8

If Glendale Fire Pumpers carry approximately 36 gallons of AFFF ATC Foam and you are called to an alcohol spill, what is the maximum square footage area you would be able to cover, one time, with only the foam carried on your truck?

Answer 8

D. 2400 square feet

Hydraulic Handout pg. 6