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FAE EXAM 2025 (FIRE APPARATUS ENGINEER EXAM)
| ALL QUESTIONS AND CORRECT ANSWERS |
NEWEST EXAM | GRADED A+ | VERIFIED ANSWERS
What does one cubic foot of water weigh? - ..(ANSWER)...62.5 lbs
What does One cubic foot of water contain in inches? - ..(ANSWER)...1.728 cubic
inches
What does One cubic foot of water contain in gallons? - ..(ANSWER)...7.5 gallons
What does One gallon of water weigh? - ..(ANSWER)...8.35 lbs
What does One gallon of water contain in inches? - ..(ANSWER)...231 cubic inches
What is One foot of water exert as a back pressure? - ..(ANSWER)....434 psi
How high will One psi elevate water? - ..(ANSWER)...2.304 feet
What is atmospheric pressure at sea level? - ..(ANSWER)...14.7 psi
What is the maximum lift for drafting? (Theoretically) - ..(ANSWER)...34 feet
, 2
How high does One inch (1") mercury (inches in vacuum) lift? - ..(ANSWER)...1.13
feet of lift
What is the recommended minimum psi that should be maintained on the
compound gauge when taking water from a hydrant? - ..(ANSWER)...10 psi
What is Static pressure? - ..(ANSWER)...Stored or potential energy that is available
to force water through pipes and fittings, fire hose, and adapters.
Residual Pressure - ..(ANSWER)...That part of the total pressure that is not used to
overcome friction or gravity while forcing water through fire hose, pipe, fittings,
and adapters.
How to calculate psi loss for each additional line off hydrant and know how many
lines can be taken off hydrant? - ..(ANSWER)...Take Static pressure and
subtracting residual pressure which gets you your drop. Take your drop and
multiply it by (2)² for second line, (3)² for third line, (4)² for forth line, (5)² for fifth
line. so long as after you multiply drop and the multiplayer for the number line
and still have 10 psi left based off static pressure you can have that many lines if
you have less than 10 psi you can not operate that number of lines.
Examples of how to calculate psi loss for each additional line off hydrant -
..(ANSWER)...Example: Static pressure: 65 psi Residual pressure : 60 psi
Drop: 5 psi
2nd line: 2²=4: 4x5= 20
3rd line: 3²=9: 9x5= 45
, 3
4th line: 4²=16: 16x5= 80 This line can't be done because it is over 65 psi
What are all the steps in Certification Test (pre-service tests)? - ..(ANSWER)...1. 2
Hour: 100% @ 150 psi
2. 1/2 hour: 70% @ 200 psi
3. 1/2 hour: 50% @ 250 psi
4. 10 minutes: 100% @ 165 psi (overload or spurt test)
What is a Spurt or Overload test? - ..(ANSWER)...100% @ 165 psi (done in
certification test for 10 minutes)
What are all the steps in a Service Test? - ..(ANSWER)...1. 20 minutes: 100% @
150 psi
2. 10 minutes: 70 % @ 200 psi
3. 10 minutes: 50% @ 250 psi
Optional: 100% @ 165 psi (overload or spurt test)
What are Pump Tests? - ..(ANSWER)...100% capacity @ 150 psi net pump pressure
70% capacity @ 200 psi net pump pressure
50% capacity @ 250 psi net pump pressure
What is Net Engine/Pump Pressure (NEP)? - ..(ANSWER)...Net Pump Pressure
(NEP) is the measurement of the total work performed by the pump:
, 4
a. To lift water into the pump (drafting)
b. To discharge water from the pump
NEP= Suction Side Work(drafting) + Discharge Side Work
Examples of figuring out Net Engine/Pump Pressure (NEP) -
..(ANSWER)...Examples:
Discharge gauge reads 165 psi but you are getting supplied by hydrant @ 65 psi
on your intake gauge. So the net pressure would only be 100 psi.
Now your are drafting and Intake gauge reads 20" mercury (-20) and Discharge
reads 120 psi. So your net pump pressure is 140
What is Pump Discharge Pressure? - ..(ANSWER)...Pump Discharge Pressure (PDP)
is:
PDP= Net pump pressure(NEP) - Suction Side Work
How do you figure out Suction Side Work ? - ..(ANSWER)...Suction Side Work(psi)=
Lift (ft)+Intake Hose FL(Friction Loss) (psi) Divided by 2.3
What is Fog nozzle pressure for Hand held nozzle and Master Stream? -
..(ANSWER)...100 psi
What is Smooth Bore nozzle pressures for Hand held nozzle and Master Stream? -
..(ANSWER)...Hand Held : 50 psi
Master Stream: 80 psi
FAE EXAM 2025 (FIRE APPARATUS ENGINEER EXAM)
| ALL QUESTIONS AND CORRECT ANSWERS |
NEWEST EXAM | GRADED A+ | VERIFIED ANSWERS
What does one cubic foot of water weigh? - ..(ANSWER)...62.5 lbs
What does One cubic foot of water contain in inches? - ..(ANSWER)...1.728 cubic
inches
What does One cubic foot of water contain in gallons? - ..(ANSWER)...7.5 gallons
What does One gallon of water weigh? - ..(ANSWER)...8.35 lbs
What does One gallon of water contain in inches? - ..(ANSWER)...231 cubic inches
What is One foot of water exert as a back pressure? - ..(ANSWER)....434 psi
How high will One psi elevate water? - ..(ANSWER)...2.304 feet
What is atmospheric pressure at sea level? - ..(ANSWER)...14.7 psi
What is the maximum lift for drafting? (Theoretically) - ..(ANSWER)...34 feet
, 2
How high does One inch (1") mercury (inches in vacuum) lift? - ..(ANSWER)...1.13
feet of lift
What is the recommended minimum psi that should be maintained on the
compound gauge when taking water from a hydrant? - ..(ANSWER)...10 psi
What is Static pressure? - ..(ANSWER)...Stored or potential energy that is available
to force water through pipes and fittings, fire hose, and adapters.
Residual Pressure - ..(ANSWER)...That part of the total pressure that is not used to
overcome friction or gravity while forcing water through fire hose, pipe, fittings,
and adapters.
How to calculate psi loss for each additional line off hydrant and know how many
lines can be taken off hydrant? - ..(ANSWER)...Take Static pressure and
subtracting residual pressure which gets you your drop. Take your drop and
multiply it by (2)² for second line, (3)² for third line, (4)² for forth line, (5)² for fifth
line. so long as after you multiply drop and the multiplayer for the number line
and still have 10 psi left based off static pressure you can have that many lines if
you have less than 10 psi you can not operate that number of lines.
Examples of how to calculate psi loss for each additional line off hydrant -
..(ANSWER)...Example: Static pressure: 65 psi Residual pressure : 60 psi
Drop: 5 psi
2nd line: 2²=4: 4x5= 20
3rd line: 3²=9: 9x5= 45
, 3
4th line: 4²=16: 16x5= 80 This line can't be done because it is over 65 psi
What are all the steps in Certification Test (pre-service tests)? - ..(ANSWER)...1. 2
Hour: 100% @ 150 psi
2. 1/2 hour: 70% @ 200 psi
3. 1/2 hour: 50% @ 250 psi
4. 10 minutes: 100% @ 165 psi (overload or spurt test)
What is a Spurt or Overload test? - ..(ANSWER)...100% @ 165 psi (done in
certification test for 10 minutes)
What are all the steps in a Service Test? - ..(ANSWER)...1. 20 minutes: 100% @
150 psi
2. 10 minutes: 70 % @ 200 psi
3. 10 minutes: 50% @ 250 psi
Optional: 100% @ 165 psi (overload or spurt test)
What are Pump Tests? - ..(ANSWER)...100% capacity @ 150 psi net pump pressure
70% capacity @ 200 psi net pump pressure
50% capacity @ 250 psi net pump pressure
What is Net Engine/Pump Pressure (NEP)? - ..(ANSWER)...Net Pump Pressure
(NEP) is the measurement of the total work performed by the pump:
, 4
a. To lift water into the pump (drafting)
b. To discharge water from the pump
NEP= Suction Side Work(drafting) + Discharge Side Work
Examples of figuring out Net Engine/Pump Pressure (NEP) -
..(ANSWER)...Examples:
Discharge gauge reads 165 psi but you are getting supplied by hydrant @ 65 psi
on your intake gauge. So the net pressure would only be 100 psi.
Now your are drafting and Intake gauge reads 20" mercury (-20) and Discharge
reads 120 psi. So your net pump pressure is 140
What is Pump Discharge Pressure? - ..(ANSWER)...Pump Discharge Pressure (PDP)
is:
PDP= Net pump pressure(NEP) - Suction Side Work
How do you figure out Suction Side Work ? - ..(ANSWER)...Suction Side Work(psi)=
Lift (ft)+Intake Hose FL(Friction Loss) (psi) Divided by 2.3
What is Fog nozzle pressure for Hand held nozzle and Master Stream? -
..(ANSWER)...100 psi
What is Smooth Bore nozzle pressures for Hand held nozzle and Master Stream? -
..(ANSWER)...Hand Held : 50 psi
Master Stream: 80 psi
