Hydraulics 2014 Flashcards
1 cubic foot contains how many gallons of water?
7.5
1 cubic foot of fresh water weighs how many pounds?
62.5
1 gallon of fresh water weighs how many pounds?
8.33
One 50’ section of 1.75” hose contains how many gallons?
6.24
One 50’ section of 1.88” hose contains how many gallons?
7.2
One 50’ section of 2.5” hose contains how many gallons?
12.74
One 50’ section of 3” hose contains how many gallons?
18.35
A 100’ section of 4” contains how many gallons?
65.25
A 100’ section of 5” hose contains how many gallons?
101.94
What is the formula for calculating volume in a rectangular or square container?
Length * Width * Depth * 7.5
What is the formula for calculating the volume of a cylindrical shaped container?
Pi * radius squared * height or length * 7.5
What is the gallonage of a 1/2” smooth bore nozzle at 50psi?
Theoretical is 53. Fire ground is 50.
What is the gallonage of a 7/8” smooth bore nozzle at 50psi?
Theoretical is 161. Fire ground is 150.
What is the gallonage of a 15/16” smooth bore nozzle at 50psi?
Theoretical is 185. Fire ground is 185.
What is the gallonage of a 1” smooth bore nozzle at 50psi?
Theoretical is 210. Fire ground is 200.
What is the gallonage of a 1.125” smooth bore nozzle at 50psi?
Theoretical is 266. Fire ground is 250.
What is the gallonage of a 1.1875” smooth bore nozzle at 50psi?
Theoretical is 296. Fire ground is 300.
What is the gallonage of a 1.25” smooth bore nozzle at 50psi?
Theoretical is 328. Fire ground is 325.
What is the gallonage for a 1.25” smooth bore nozzle at 80psi?
Theoretical is 415. Fire ground is 400.
What is the gallonage of a 1.375” smooth bore nozzle at 80psi?
Theoretical is 502. Fire ground is 500.
What is the gallonage for a 1.5” smooth bore nozzle at 80psi?
Theoretical is 598. Fire ground is 600.
What is the gallonage of a 1.75” smooth bore nozzle at 80psi?
Theoretical is 814. Fire ground is 800.
What is the gallonage of a 2” smooth bore nozzle at 80psi?
Theoretical is 1062. Fire ground is 1000.
What is the booster reel gallonage and nozzle pressure?
12-60 gpm and 100psi.
What is the forestry hose gallonage and nozzle pressure?
12-60 gpm or 22 gpm and 100psi.
What is the decon shower gallonage and nozzle pressure?
270gpm and 75psi.
What is the piercing nozzle gallonage and nozzle pressure?
125 gpm and 100psi.
What is the gallonage and nozzle pressure of the 2.5” cellar nozzle?
350gpm and 100psi.
What is the gallonage and nozzle pressure of a 2.5” distributor nozzle?
250gpm and 100psi.
What is the gallonage and nozzle pressure of 1.5” cellar nozzle?
160gpm and 100psi.
What is the gallonage and nozzle pressure of a 1.5” distributor nozzle?
95gpm and 50psi.
Double the length of hose _______ the FL?
Doubles
If quantity is doubled, FL will be _______?
Quadrupled
FL varies inversely to the _____ power as the diameter of hose?
5th
The greater the velocity of water, the ______ the FL?
Greater
What is the FL Coefficient of 1”?
150
What is the FL Coefficient of 1.75”?
15
What is the FL Coefficient of 1.88”?
10
What is the FL Coefficient of 2”?
8
What is the FL Coefficient of 2.5”?
2
What is the FL Coefficient of 3”?
.8
What is the FL Coefficient of dual 3”?
.2
What is the FL Coefficient of 3.5”?
.34
What is the FL Coefficient of 4”?
.2
What is the FL Coefficient of dual 4”?
.05
What is the FL Coefficient of 3” and 4” combined?
.09
What is the FL Coefficient of 5”?
.08
What is the theoretical method to calculate elevation?
4.34psi per 10’
What is the JS-10 Air aspirating nozzle gallonage and nozzle pressure?
100gpm and 100psi
The portable foam eductor flows _____ gpm at ______ psi?
95-125 and 200
The Pierce/Husky Foam system is capable of injecting foam from ____ with a rated capacity of _____ gpm foam concentrate at _____ psi?
.01-3%, 3, and 150
CAFS for fire attack consists of _____ water and _____ air with a foam application rate of ____?
2/3, 1/3, and .3%
CAFS for overhaul and exposure protection consists of ____ air and _____ water with an application rate of _____?
2/3, 1/3, and .5%