Hydraulics Chart Flashcards
GPM for Smooth bore nozzles (monitor) - 1 3/8”
500gpm
1 3/4” hose friction loss coefficient
15.5
What is the max flow of truck 11
1250gpm
formula for EP (elevation pressure)
EP= 0.5(height in ft.)
Square root of 50
7
initial operating pressure: sprinkler system@FDC
150psi
when drafting, is pump set to volume or pressure?
volume
Masterstream Fog nozzle pressure
100psi
What’s the square root of 80
9
how many gallons of water are per cubic foot
7.5 gallons
3” hose friction loss coefficient
0.8
formula for EP in multistory building
EP=(5.0 psi) (#of stories - 1)
when relay pumping, what should your pressure stay below?
200psi
how many cubic inches of water are there in a gallon
231
what is the RPM range for drafting
1000-1300 RPM
GPM for smooth bore nozzles (monitor) - 2”
1000gpm
how much does a gallon of water weigh
8.35lbs
what should your PSI be at the inlet of your engine when relay pumping?
20psi
GPM for smooth bore nozzles (monitor) - 1 1/2”
600gpm
GPM for smooth bore nozzles (monitor) - 1 3/4”
800gpm
back or head pressure (+/-) per floor
5.0psi per floor (above 1st floor)
what is the PSI required at the eductor inlet for the Foam Elkhart
200psi
What’s the square root of 100?
10
What’s the FL to the trucks trimese?
25psi
Initial Operating pressure: Freeway; blitz line
125psi
monitor base friction loss
15psi
Back or head pressure (+/-) per foot
0.5psi per foot
Wye or siamese friction loss
0psi
Psi of handheld fog nozzles
100psi
Masterstream smooth bore nozzle pressure
80psi
initial operating pressure: pre-connect
150psi
1” hose friction loss coefficient
150
4” hose friction loss coefficient
0.2
1 1/2” hose friction loss coefficient
24
Standpipe friction loss
25psi +BP (back pressure)
1 lb of water will raise how many feet
2.31 feet
4-way valve friction loss
15psi
.434lb of water will raise how many feet
1 foot
how many lbs of water are there per cubic foot
62.5lbs
2 1/2” hose friction loss coefficient
2
Handheld Fog nozzle pressure
100psi
IOP blitz line w/wye - 2 lines
150psi
IOP of blitz line w/eye, 1 line
130psi
IOP of any hose line initially not known
125psi