Hydraulics Flashcards
At sea level, the maximum height a vacuum will pull water?
33.9 ft
Backflow in a piping system occurs with either or both hydraulic conditions known as:
Backpressure or Backsiphonage
Atmospheric Pressure at sea level is :
14.7 PSI
Clean water at sea level weights_____pounds per cubic foot.
62.4
Water pressure increases at the rate of _____ per foot of elevation.
.433 PSI
A pressure of 1 PSI is equal to _____ feet of head
2.31
Hydraulic shock is commonly referred to as ?
Water hammer
What causes water hammer in a water supply system?
A quick closing valve
When the velocity of a fluid increases, the pressure within the system will do what?
decrease
Thermal expansion occurs in any hot water system when the system water is _____.
heated
The installation of what device in what location cause a closed system?
Backflow preventer at the meter
What device must be installed when you have a closed system do to the installation of a backflow preventer?
A thermal expansion control device( expansion tank)
To stop a siphon in potable water system, one must:
Admit air into the system
To operate, a barometric loop must be installed:
35 ft above the highest outlet
For fluid to flow, there must be a path and a(n):
Difference in pressure
