FAE Illinois Study Guide questions with verified answers 2025
Latest Updated Version.
Level 2 staging Off scene staging spot with additional resources
1 gallon weighs 8.33 lbs
1 cubic ft of water is how many 7.48 Gal
gallons?
1 cubic ft of water weighs 62.4 lbs
1 Inch of water that is 1 ft tall .434 psi
exerts how many psi?
Water freezes at what 32 degrees F
temperature?
Water boils at what temperature 212 degrees F
Atmospheric Pressure is how 14.7 psi
many psi?
A vacuum is any pressure less than atmospheric pressure
Head Pressure the height of a water supply above the discharge
stored potential energy available to force water through pipe,
Static Pressure
fittings, fire hose and adapters
the pressure found in water distribution systems during normal
Normal operating pressure
consumption demands.
Residual pressure the amount of pressure that remains in the system when water is flowing
Flow pressure Also known as forward velocity pressure
Water mains are made into a Grid system
Primary (Water mains) Larger water mains typically on the outside of the grid
Secondary (Water mains) Smaller mains making the inside of the grid
Distributors The Hydrants/spots going into homes or buildings
Water main dead end The end of a water main where water is stagnant and does not provide
optimal psi
If all other conditions are the same, friction loss varies directly
First Principle of Friction Loss
with the length of the hose or pipe
When hoses are the same size, friction loss varies
Second Principle of Friction Loss
approximately with the square of the increase in the velocity
of the flow
For the same discharge, friction loss varies inversely as the fifth
Third Principle of Friction Loss
, power of the diameter of the hose
For a given velocity, friction loss is approximately the same,
Fourth Principle of Friction Loss
regardless of the pressure on water
Run in RPM
mode Friction
Relay Pumping
loss of 20
Engines closest to the fire begin shutting down first
Largest capacity pump should be closest to the water source
What should the speedometer 15mph
read after putting the engine in
pump and drive?
Positive Displacement
Pump Piston Pump
Types of pumps
Rotary Pump
Centrifugal Pump
Latest Updated Version.
Level 2 staging Off scene staging spot with additional resources
1 gallon weighs 8.33 lbs
1 cubic ft of water is how many 7.48 Gal
gallons?
1 cubic ft of water weighs 62.4 lbs
1 Inch of water that is 1 ft tall .434 psi
exerts how many psi?
Water freezes at what 32 degrees F
temperature?
Water boils at what temperature 212 degrees F
Atmospheric Pressure is how 14.7 psi
many psi?
A vacuum is any pressure less than atmospheric pressure
Head Pressure the height of a water supply above the discharge
stored potential energy available to force water through pipe,
Static Pressure
fittings, fire hose and adapters
the pressure found in water distribution systems during normal
Normal operating pressure
consumption demands.
Residual pressure the amount of pressure that remains in the system when water is flowing
Flow pressure Also known as forward velocity pressure
Water mains are made into a Grid system
Primary (Water mains) Larger water mains typically on the outside of the grid
Secondary (Water mains) Smaller mains making the inside of the grid
Distributors The Hydrants/spots going into homes or buildings
Water main dead end The end of a water main where water is stagnant and does not provide
optimal psi
If all other conditions are the same, friction loss varies directly
First Principle of Friction Loss
with the length of the hose or pipe
When hoses are the same size, friction loss varies
Second Principle of Friction Loss
approximately with the square of the increase in the velocity
of the flow
For the same discharge, friction loss varies inversely as the fifth
Third Principle of Friction Loss
, power of the diameter of the hose
For a given velocity, friction loss is approximately the same,
Fourth Principle of Friction Loss
regardless of the pressure on water
Run in RPM
mode Friction
Relay Pumping
loss of 20
Engines closest to the fire begin shutting down first
Largest capacity pump should be closest to the water source
What should the speedometer 15mph
read after putting the engine in
pump and drive?
Positive Displacement
Pump Piston Pump
Types of pumps
Rotary Pump
Centrifugal Pump
