Hose Lays Flashcards
(17 cards)
What is max practical lift in a draft
22’
If supplying to trucks pump, how will final pressure be determined?
Hose on the ground + 20psi
Per SBC drafting manual, how deep should our strainer be at least
18”
What is max theoretical lift (in a perfect vacuum)
33’
What’s the FL for the truck fog nozzle
80psi
What should be done in a relay if water demands are less than 250 GPM
If duals are laid, only pump 1 line
At 15’ draft, what percent capacity are we pumping?
70%
What is the FL for the aerial from the turntable to the tip
.5psi per foot (it’s a max of 50psi)
Don’t forget the nozzle and trimese FL
At 20’ draft, what percent capacity are we pumping?
60%
Disadvantage of using pump of the truck
It takes 2 engineers to perform the task (engineer isn’t at turntable)
The first relay engine supplies water to the attack pumper at what pressure?
Idle
(Supply engines still setting up)
IOP not used yet
If using trucks pump, how is water supplied to the aerial?
4” hose has to be connected to off-side panel discharge
What is the max distance an engine can go when attempting to pump from a hydrant to the truck
500’ because three lines are needed
What is the IOP when relay pumping
130psi
What’s the advantage of pumping to the trucks pump when supporting the aerial?
Supply pressure from the hydrant will be much less since the trucks pump will reduce psi demand
What is FL of truck trimese
25psi
What is IOP for supplying the truck
130psi
