Math Flashcards
1.75 square
3.0625
1.5 square
2.25
1.25 square
1.5625
1.25 inch smooth bore flows?
328 or 325gpm
Coefficient for 4”
.2
Coefficient for 1.88 or ffx attack line
10
Gpm of standard crosslay nozzles
175gpm at 50psi
15/16” smooth bore flows?
185gpm
1.125 or 11/8th inch smooth bore flows?
266 or 250gpm
1.25 master stream smooth bore flows?
415 or 400gpm
1 3/8th inch master stream smooth bore?
502 or 500gpm
1.50inch smooth bore master stream flows?
598 or 600gpm
1.75inch sb master stream flows?
813 or 800gpm
This smooth bore master stream nozzle flows 1063 or 1000gpm?
2 inch
Mercury Monitor flow and Psi
500gpm max flow…150psi starting pressure. 100psi fog tio, 80 psi smooth bore.
Coefficient for 2 inch
2
Coefficient for 3”
.8
Appliance loss for a master stream?
25psi
Add 10 psi to your friction loss calculations for flows of what gpm?
Over 350 gpm
When flowing under 350gpm how much friction loss must you add for the GPM?
Zero
Elevation psi at a high rise?
.5psi per floor above the connection
Starting pressure for standpipe or sprinkler system?
150Psi
Appliance loss for a ladder pipe?
25psi
Coefficient for dual 3”lines
0.2