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WELL CONTRACTORS CERTIFICATION WATER & HYDROGEOLOGY
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The following terms can be applied to well screen(s)
Allow flow of “sand free” water
Causes minimum loss of head during use
Called the “business end” of the well
All of the above
A unit used to measure well yield can be:
GPM – gallons per minute
GPH – Gallons Per Hour
CFS – Cubic feet Per Second
All of the Above
How is the static water level generally recognized and measured in a well?
Measure the diatance of the well head to the ground
Measure the distance from the top of the water in well to the ground surface
Measure the distance from the well pump to the ground
Measure the water after shutting off the flow of the well
Both b & d
The quantity of water that is retained when water is subject to gravity drainage is called ________
specific yield
specific retention
percent retention
remaining volume
When the water level is being measured (ft) during drawdown on a well the difference measured is between what two levels?
Between the static level and pumping level
Between the ground level and water level
None of these
All of these
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