Random Questions Flashcards
The flow of pressure of water as it leaves the nozzle is?
Nozzle pressure
One cubic foot of water weighs?
62.5
How many gallons of water is in 150’ of 3”?
54.9 gallons
What is the formula to determine the volume of a rectangle?
L x W x H or D
What is the correct formula to compute the discharge from a smooth bore nozzle?
29.7 x D2 x square root of NP
A small stream is how many gpm or less?
350
One length of 3” contains how many gallons?
18.35
What pressure is generated by the weight of a column of water above the pump usually .434 psi per foot?
Back or head pressure
How do you measure flow pressure?
Pitot gauge
The results in the water and the water molecules rubbing on the interior surfaces of the hose and apps, this energy loss is what?
Friction loss
If the quantity of flow is doubled I. The same size hose the friction loss is then what?
Quadrupled
You are the engine on a building fire. The attack engine is flowing 500 gpm. The have laid 700’ of 4”. What is your starting pressure?
50psi
