Water Supply Flashcards
A Pitot gauge is used to determine ___ pressure.
Flow Pressure
The pipes that deliver water from the treatment facility for distribution are ___.
Mains
The pipes that deliver water to users and hydrants on individual streets are ___.
Distributors
Where are dry-barrel hydrants typically used?
Cold Climates
What is the term for a large discharge opening on a fire hydrant?
Steamer
How can you determine that a dry-barrel hydrant is still draining?
Place a hand over an outlet and feel for suction.
Pressure in a water distribution system during average consumption is ___ pressure.
Normal Operating
A dry hydrant provides access to a ____.
Static water source.
In a well-designed water distribution system, which type of pattern do water mains follow?
Grid
The flow or quantity of water moving is measured in ___.
Gallons per Minute (liters per minute).
What should be done to avoid water hammer?
Open and close all valves slowly.
What is the decrease in pressure that occurs as water moves through a hose?
Friction Loss
What is a hard suction hose commonly used for?
Drafting from a static water source
Which of the following is one of the 3 factors that determine friction loss?
A) Ambient Temperature
B) Hose Diameter
C) Atmospheric Pressure
D) Water Source
B) Hose Diameter
In a jacketed fire hose, which function does the outer jacket serve?
It adds strength that allows the hose to withstand water pressure