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WELL CONTRACTORS CERTIFICATION CONSTRUCTION EXAM
e08803fa-b32c-4bed-a164-b669cf0191ab
What are the most important things when choosing material for a screen:
Mineral content of the water
Presence of bacterial slimes
Strength requirements of the screen
All of the above
Why is a circular arrangement more efficient for a well point system
A central pump is needed
More hydraulic lift from centralized pump
Water travels faster in circles
None of the above
The entire depth of the well shall be sounded before it is sealed to ensure freedom from obstructions that may interfere with sealing operations
True
False
Why is development work important for water wells
Corrects damage to or clogging of formation
Increases porosity of the natural formation
Stabilizes the sand formed around the screen
All of the above
In the case of gravel-packed wells in which the casing and screens have not been removed and abandoning the well:
Neat cement shall be injected into the well
Bentonite slurry grout shall be injected into the well
A or B
None of the above
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