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FAE (Fire Apparatus Engineer) Illinois | 163 Questions and Answers 100% Verified | Updated 2024
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FAE (Fire Apparatus Engineer) Illinois | 163 Questions and Answers 100% Verified | Updated 2024
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FAE (Fire Apparatus Engineer) Illinois | 163Questions and Answers 100% Verified | Updated
2024
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
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
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:
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:
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