Flashcards in Chapter 13 - Water Shuttle Operations Deck (13)
In accordance with NFPA 1901, water tenders must be designed to be filled at a rate of at least _____ gpm so that pumpers assigned to the fill site must be rated at that capacity or greater.
Tender featuring pumps of ____ gpm or greater rating are often called _______/______
The vacuum tender is able to self-fill from a static water source at a rate of up to _____ gpm with a lift of up to ___ feet. These apparatus are also capable of discharging its water tank at a rate of up to _____ gpm.
When possible, a water supply source capable of supply at least _____ gpm should be chosen in order to match NFPA recommended rate at which tenders should be filled.
Driver/operators must consider the following safety issues when planing a route of travel for water shuttle operations. (7)
> Narrow Roads
> Long Driveways
> Blind curves and intersecitons
> Winding roads
> Steep grades
> Inclement weather conditions
> Freezing water
The primary advantage of the ___________ is the large capacity of its tank that may allow incidents to be concluded before there is a need to refill the tank.
NFPA 1901 requires all tenders to have the capability to dump a minimum average flow rate of _____ gpm for the first ___ percent of its tank capacity
Any tank, regardless of type, should be set up on a surface that is as level as possible and have a capacity at least ____ gallons larger than the water tank of the apparatus that will supply it.
Formula for Water Shuttle Flow Rate
Flow = (0.9 x TS) ÷ Trip Time
Flow = Flow rate in gpm
TS = Tank size
Formula for Travel Time
Travel Time = 0.65 + (1.7)(Distance)
Assuming avg speed of 35 mph
Travel time = Time in Minutes
Distance = Distance in Miles
Formula for Handling Time
Handling Time = Fill Site Time + Dump Site Time
Time = make and break times + (TS ÷ Fill/Dump Rate)
Formula for Tender Flow Rate
Flow = (0.9 x TS) ÷ (Travel Time + Handling Time)
TS = Tank Size