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42 Cards in this Set

  • Front
  • Back
GPM 2 1/2 Nozzle
250
GPM 1 1/2 Nozzle
125
GPM 1 1/2 NK3`
60
GPM 1 Bubble Cup
Oct-60
GPM 1 NK2
20
GPM Equation
29.7 X D^2 X SQ RT of NP
Square Root of 100 PSI
10
Square Root of 80 PSI
9
Square Root of 50 PSI
7
Friction Loss Equation
C X Q^2/100 X L per 100
Equation Nozzle Reaction (Fog)
.505 X GPM
Equation Nozzle Reaction (Tip)
1.57 X D^2 X NP
Volume of a tank
L X W X H
Area of a rectangle
L X W
Weight one gallon h2o
8.35
Exertion of one sq inch H2O 1 foot deep
0.434
atmoshperic pressure at sea level
14.7 PSI
NP hand held straight tip
50 PSI
NP Master Stream Tip
80 PSI
NP Fog Combination Nozzle
100 PSI
1 Coefficient
150
1 1/2 coefficient
24
1 3/4 coefficient
15.5
2 1/2 coefficient
2
4 coefficient
0.2
FL forestry tee
5 PSI
FL Wye, Siamese
10 PSI
FL Manifold
10 PSI
Portable Monitors
15 PSI
Engine (Relay Pumping)
20 PSI
Standpipe
25 PSI
Ladder Pipe (Truck one)
80 psi


PSI PER FLOOR UP OR DOWN (10 FEET)
5 PSI
Wildland Elevation 100'
43 PSI
Wildland Elevation 50'
22 PSI
Wildland Elevation 25'
11 PSI
Coefficient 2 2 1/2's
0.5
Coefficient three 2 1/2's
0.22
Coefficient One 4 Two 2 1/2's
0.12
Primer
A centrifugal, midship-mounted fire pump on a fire department engine must be primed before it will operate. Primed means fully water flooded and all the air inside the pump casing preferably removed.An operating midship pump filled with water is self- sustaining in that it creates quite a high vacuum at the eye of the impeller. This provides a continuous intake of water when drafting from a static supply source.
Pressure Relief/ Governor
The relief valve is designed to keep dangerous pressure surges from injuring firefighters on hoselines. The system consists of two components: the pilot valve, which is mounted to the pump panel; and the relief valve, which is mounted between the pump intake and discharge fittings. The pilot valve manages the system by sensing discharge pressure and controls the opening and closing of the relief valve. The relief valve directs water from the discharge of the pump back into the intake of the pump when pressure surges occur