FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1

Regardless of the method of well construction and type of pump to be installed, the top of the casing should be terminated at least ______ inches above land surface

6 in

8 in

10 in

12 in

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

What is meant by developing a well in a well point system

After a well point is driven it should be cleaned out

Surging water in an out through the screen openings

Remove silt and fine particles of sand from formation

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 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