Flashcards in IFSTA Book Deck (53)
5 things that make a quint a quint
Fire pump, water tank, hose, aerial device, ground ladders
Steering wheel play should be no more than _____
10 degrees in either direction
Diesel Particulate Filter
What does DPF do?
Traps much of the particulate matter in exhaust emissions
Diesel Exhaust Fluid
What does DEF do?
It is injected into the gas in order to reduce the Nitrogen Oxide emissions from diesel engines
High Exhaust System Temperature
Inside/Outside method of apparatus placement
Aerial positioned outside pumper if building is less than 5 stories tall. Aerial positioned inside the pumper if building is more than 5 stories tall.
Water expands _______ when converted to steam.
Post Indicator Valve
What does a PIV do?
Controls underground water mains found on the supply main of installed fire protection systems.
OS and Y Valve
Outside Screw & Yoke Valve
What does an OS and Y valve do?
Control valve for a sprinkler system
Equation for flow from a solid stream nozzle
GPM = 29.7 x D squared x square root of NP
Equation for nozzle reaction for solid stream nozzle
NR = 1.57 x D squared x NP
Equation for nozzle reaction for fog stream nozzle
NR = 0.0505 x Q x square root of NP
Field equation for nozzle reaction from a solid stream nozzle
NR = Q/3
Field equation for nozzle reaction from a fog stream nozzle
NR = Q/2
Friction loss in an appliance where flow is less than ______ is generally considered to be insignificant
Condensed Q formula for 3" hose
Condensed Q formula for 4" hose
Q squared / 5
Condensed Q formula for 5" hose
Q squared / 15
In a centrifugal pump, where is velocity energy converted into pressure?
Tank fill line requirements
Must be 1" or larger in diameter for tanks less than 1000 gallons
What does the tachometer display?
Engine speed in revolutions per minute
What does the voltmeter display?
What does the ammeter display?
Status of the vehicle's alternator and charging system
If 0-10 percent descrease of pumper intake pressure, how much additional water is available?
If 11-15 percent descrease of pumper intake pressure, how much additional water is available?