FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1

When might spacing between wells in well point system be less than 25ft

Large boulders in soil

Fine sand formations

Excess tree roots

None of the above

Which are the following are not good features of a well screen:

Close spacing of slot openings to provide maximum open area

Adaptibility to different conditions by use of various materials

Ample strength to resist forces during and after installation

Non single metal construction that rusts quickly

What is the average greatest suction lift that can be developed practically on a well point system

25ft

30ft

40ft

50ft

Haw is sacking used when removing a wells screen

Strips are fastened to the pulling pipe

Wired just above a coupling at the lower end of the pulling pipe

Wired just above a ring welded on the pipe

All of the above

What is the typical drying time for Portland cement?

24 hrs

12 hrs

36 hrs

72 hrs