FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ2

The mineral content in the Mountain region and most of the Piedmont is generally less than total dissolved solids of 100 mg/l (milligrams per liter)

True

False

What are reasons a well screen might be pulled

Removal of encrusting of materials on the screen that cannot be removed from chemical treatment

Corrosion of the screen allowing sand to enter water

Abandonment of the well and retrieval of parts

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

What is the purpose of a seal on a gravel pack

Close the annular space between the top of the extension pipe and the inside of the well casing installed in the upper portion of the well

Prevent upward movement of the gravel when the well is pumped

To allow the flow of gravel into the annular space when well is in use

Both A & B

Grout shall extend outward in all directions from the casing wall to a minimum thickness equal to either _________of the diameter of the outside dimension of the casing or ____ in, whichever is greater

1/4, 4 in

1/3, 6 in

1/3, 2in

1/5, 1in

WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ2

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