FAE (Fire Apparatus Engineer) Illinois EXAM
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STUDYING MATERIAL WITH 150+ QUESTIONS
A water main supplied from only one direction, usually resulting in poor flow. -
ANSWER Dead End Main
Water used for residential use as well as industrial, commercial, public use and
waste. Everything other than fire flow.
- ANSWER Domestic Supply
Water required for fire protection. GPM and duration. Includes Domestic supply -
ANSWER Fire Flow
The loss of pressure resulting from water rubbing against and being agitated by
the interior walls of fire hose, pipe, fittings, adapters, and nozzles.
- ANSWER Friction Loss (FL)
Large pipes with relatively wide spacing which convey large quantities of water to
various points of the system for local distribution to the smaller mains.
- ANSWER Primary Feeders
The network of pipes of intermediate size which reinforce the grid within the
various loops of the primary feeder system and aid the concentration of the
required fire flow at any point.
,- ANSWER Secondary Feeders
A grid arrangement of smaller mains serving the individual fire hydrants and
blocks of consumers.
- ANSWER Distributors
The network of mains that make up a distribution system. It should consist of
primary, secondary, and distributor mains.
- ANSWER Grid
One gallon in one gallon out (two basic types of positive displacement pumps) -
ANSWER Positive Displacement Pumps
Positive Displacement Pump
Single action piston pump- discharges on forward stroke and refills on return
stroke.
Double action piston pump- receives & discharges on each stroke of the piston. -
ANSWER Piston Pump
(Simplest design- 1st used in 17th century) Adapted to the steamer in the 19th
century. Silsby was the 1st to use it in 1856.
Rotary gear and Rotary vane
- ANSWER Rotary pumps
Positive Displacement Pump
Two gears that mesh tightly in a water tight case.
, Output capacity determined by size of the pockets in the gears & the speed of
rotation.
- ANSWER Rotary Gear pump
Eccentric position of rotor. Distance between the rotor & the housing is much
greater at intake than at discharge.
Vanes are free to move within the mounting slot
Most commonly used priming pump
- ANSWER Rotary Vane pump
Pumps air and water
Self Priming
- ANSWER Positive Displacement pumps (Advantages)
-Tendency to pulse Fire streams.
-As the piston or gears wear, water escapes from the discharge side of the pump
reducing the capacity of the pump. (Slippage)
-Contaminate water can quickly damage the pump.
-Does NOT USE incoming Pressure.
- ANSWER Positive Displacement Pumps (Disadvantages)
Casing, shroud, vanes, impeller, volute, eye, hub, stripping edge, discharge -
ANSWER parts of centrifugal pump
Bore, Eye, Hub, Shroud, Vanes
- ANSWER parts of impeller
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