FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1

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

When beginning to use the Air Lift Method to evaluate well yield, the first measurement that should be taken:

Static Water Level

Air Pressure

Drawdown Level

Soil Depth

What are two differences in drilling into soft formation versus rock?

Pipe or casing must follow the drill bit closely

Casing has to be driven

The drilling effect of the bit is a loosening/mixing action

All of the above

Groundwater is the water that fills the fractures, pore spaces and other openings in soil and rock formations

True

False

Casing in wells constructed to obtain water from an unconsolidated rock formation (such as gravel, sand, or shells) shall extend at least ______ ft into the top of the water-bearing formation

1

3

5

7