Home > Preview
The flashcards below were created by user
hkstation34
on FreezingBlue Flashcards.

There is ____ lb of water per cubic foot
62.5

There is _____ lb of water per gallon.
8.33

1 foot of water exerts _____ psi
0.434

1 psi raises water _____ ft
2.304

Atmospheric pressure = _____ psi at sea level
14.7

Lift = ____ x Hg (inches of mercury)
1.13

In order to measure the number of gallons in a body of water you multiply the width, length and depth of the body of water and multiply that by _____ which is the number of gallons in a cubic foot of water.
7.5

To find the GPM discharge of a smooth bore nozzle, you multiply ________.
29.7 * nozzle diameter^2 * square root of the nozzle pressure

To calculate the nozzle pressure of a smooth bore nozzle, you multiply __________.
1.57 * nozzle diameter^2 * nozzle pressure

The nozzle reaction for fog stream nozzles is ________.
0.0505 * GPM * square root of the nozzle pressure

Friction loss is calculated by multiplying the _____.
hose diameter coefficient * (gpm/100)^2 * (length of hose in feet/100)

The hose diameter coefficient for 1" is ____.
150

The hose diameter coefficient for 1.5" is ____.
24

The hose diameter coefficient for 2.5" is ____.
2

The hose diameter coefficient for 4" is ____.
0.2

Using field calculations, what is the expected pressure of a smooth bore nozzle on a handline?
50 psi

Using field calculations, what is the expected pressure of a smooth bore nozzle on a master stream?
80 psi

Using field calculations, what is the expected pressure of a standard fog nozzle?
100 psi

Using field calculations, what is the expected pressure of a low pressure fog nozzle?
50 to 75 psi

Using field calculations, what is the expected friction loss in a ladder pipe?
25 psi

Using field calculations, what is the expected friction loss in a dry stand pipe?
25 psi

Using field calculations, what is the expected friction loss in a deluge turret?
25 psi

Using field calculations, what is the expected friction loss in a FDC sprinkler system?
150 psi

Using field calculations, what is the expected friction loss in a wye, siamese or RAM flowing 350 gpm or more?
10 psi (0 psi if under 350 gpm)

If a 1" line is flowing 30 gpm, the est. friction loss in 100 feet of hose is ____.
15 psi

If a 1.5" line is flowing 30 gpm in a relay to a 1" hose, the est. friction loss in 100 feet of hose is ____.
2 psi

If a 1.5" line is flowing 60 gpm to a pair of wyed 1" lines, the est. friction loss in 100 feet of hose is ____.
10 psi

If a 1.5" line is flowing 125 gpm, the est. friction loss in 100 feet of hose is ____.
35 psi

If a 1.5" line is flowing 185 gpm, the est. friction loss in 100 feet of hose is ____.
80 psi

If a 2.5" line is flowing 125 gpm to a 1.5" line, the est. friction loss in 100 feet of hose is ____.
5 psi

If a 2.5" line is flowing 200 gpm, the est. friction loss in 100 feet of hose is ____.
10 psi

If a 2.5" line is flowing 250 gpm, the est. friction loss in 100 feet of hose is ____.
15 psi

If a 2.5" line is flowing 300 gpm, the est. friction loss in 100 feet of hose is ____.
20 psi

If a 2.5" line is flowing 400 gpm to a RAN with a NP at 50 psi, the est. friction loss in 100 feet of hose is ____.
30 psi

If a 2.5" line is flowing 500 gpm to a RAN with a NP at 75 psi, the est. friction loss in 100 feet of hose is ____.
50 psi

If a 4" line is flowing 1000 gpm, the est. friction loss in 100 feet of hose is ____.
20 psi

