Exam (elaborations)
FAE (FIRE APPARATUS ENGINEER) ILLINOIS
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FAE (FIRE APPARATUS ENGINEER) ILLINOIS
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FAE (FIRE APPARATUS ENGINEER) ILLINOISNet 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 - Answers -What is Net
Engine/Pump Pressure (NEP)?
Suction Side Work(psi)= Lift (ft)+Intake Hose FL(Friction Loss) (psi) Divided by 2.3 -
Answers -How do you figure out Suction Side Work ?
100 psi - Answers -What is Fog nozzle pressure for Hand held nozzle and Master
Stream?
Hand Held : 50 psi
Master Stream: 80 psi - Answers -What is Smooth Bore nozzle pressures for Hand held
nozzle and Master Stream?
"For every action there is an equal and opposite reaction" - Answers -What is Newton's
Third Law of motion pertaining to Nozzle Reaction?
1. Air Resistance
2. Gravity - Answers -What are the two variables that affect the reach of fire streams?
30-34 degrees - Answers -What angle does a stream get the greatest horizontal reach?
60-75 degrees - Answers -What angle does a stream get the maximum effective vertical
reach?
10% to 15% - Answers -What percent can head and tail winds affect the reach of a
stream?
Q= GPM divided by 100
Example: 200 GPM=2.00
Q=2 - Answers -What is Q value for the Q formula
Add 5 psi for each floor of elevation (exclude 1st floor)
Subtract 5 psi for each floor below grade - Answers -How do you Calculate Elevation?
add 25 psi - Answers -What is the pressure for Standpipe system and siamese?
Add 10 psi - Answers -What is the pressure for Gated Wye's and Siamese appliances?
Sprinkler Systems shall be maintained at 150 psi pump discharge pressures - Answers -
What psi should be provided to Sprinkler Systems?
, 62.5 lbs - Answers -What does one cubic foot of water weigh?
1.728 cubic inches - Answers -What does One cubic foot of water contain in inches?
7.5 gallons - Answers -What does One cubic foot of water contain in gallons?
8.35 lbs - Answers -What does One gallon of water weigh?
231 cubic inches - Answers -What does One gallon of water contain in inches?
2.304 feet - Answers -How high will One psi elevate water?
14.7 psi - Answers -What is atmospheric pressure at sea level?
34 feet - Answers -What is the maximum lift for drafting? (Theoretically)
1.13 feet of lift - Answers -How high does One inch (1") mercury (inches in vacuum) lift?
10 psi - Answers -What is the recommended minimum psi that should be maintained on
the compound gauge when taking water from a hydrant?
Stored or potential energy that is available to force water through pipes and fittings, fire
hose, and adapters. - Answers -What is Static pressure?
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) - Answers -What are all the
steps in Certification Test (pre-service tests)?
100% @ 165 psi (done in certification test for 10 minutes) - Answers -What is a Spurt or
Overload test?
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) - Answers -What are all the steps in a
Service Test?
100% capacity @ 150 psi net pump pressure
70% capacity @ 200 psi net pump pressure
50% capacity @ 250 psi net pump pressure - Answers -What are Pump Tests?
The Point at which the decision should be made to either add a line to help deliver the
desire GPM or to use a larger sized line. Any time the GPM desired produces a friction
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