and 100% Verified Answers |2026/ 2027
Updated |A+ Graded| Brand New
Version!!!
What is the pump discharge pressure when supplying a ground monitor using 500 GPM fog
nozzle with 100 psi nozzle pressure, supplied with two 2 1/2 inch hose lines each 250 ft in
length. (using long formula)
A. 130.7 psi
B. 162.5 psi
C. 222.7 psi
D. 262.5 psi - CORRECT ANSWER -B
____ GPM to ____ GPM is the maximum flow recommended for one line of 2 1/2 inch hose.
A. 150-200
B. 200-250
C. 250-300
D. 300-350 - CORRECT ANSWER -C
,On solid stream nozzles, ____ lbs. of nozzle pressure is considered to be standard on hand lines,
while ____ lbs. of nozzle pressure is considered standard pressure on master streams.
A. 40-80
B. 40-100
C. 50-80
D. 50-100 - CORRECT ANSWER -C
Which of the following is a CORRECT statement?
A. Positive pressures are measured in pounds per square inch.
B. Negative pressures are measured in inches of mercury
C. Any pressure less than atmospheric pressure is referred to as a vacuum
D. All of the above are correct statements. - CORRECT ANSWER -D
If when a pumper is connected to a hydrant, the first line is opened, and there is a drop in
residual pressure of 20%, this would indicate that the hydrant should be able to supply___
A. One half the amount of water already flowing
B. No additional water
C. Two times the amount of water (one additional setup)
D. Three times the amount of water (two additional setups) - CORRECT ANSWER -C
One cubic foot of water contains ____ cubic inches of water.
,A. 231
B. 424
C. 835
D. 1728 - CORRECT ANSWER -D
What is the square root of 121?
A. 10
B. 11
C. 12
D. 13 - CORRECT ANSWER -B
Find the desired pump pressure when supplying a 2 1/2 inch hose line with a one inch line with
50 psi nozzle pressure, laid up to the third floor. ( the supply line is 250 ft long) (use the rule of
thumb)
A. 60 psi
B. 70 psi
C. 80 psi
D. 85 psi - CORRECT ANSWER -C
In most cases, building and fire codes require wet systems with booster fire pumps built in for
structures over how many floors?
, A. 5
B. 10
C. 12
D. 15 - CORRECT ANSWER -A
When using a centrifugal pump to supply a hose line and the nozzle is shut off quickly, the
pressure wave travels back and ends at the _____.
A. Handline
B. Hydrant
C. Pumper
D. Water main. - CORRECT ANSWER -D
At a fire, 6 sprinkler heads have opened. They are operating at a 30 psi pressure. What is the
total discharge?
A. 45 GPM
B. 125. GPM
C. 180 GPM
D. 270 GPM - CORRECT ANSWER -C
In fire hydraulics, ____ is that part of the total pressure that is used to overcome friction while
forcing water through a fire hose.