FlexiQuiz - WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1

Air rotary drilling is when air is circulated through the drill pipe, through ports in the drill bit and upward in the _____ space around the drill pipe

Bore

Annular

Ring

Flat

What is the objective of the bail down method of well screening:

Whole assembly is sunk into formation

Less tools are needed

Remove sand from below the screen so the screen will settle down as sand is displaced

None of the above

What other materials and methods of disinfection can be used:

Bromine combination

Upon approval of the Department

Flourine concentrate

None of the above

Driven wells can be installed only in soft formations free from ________

Water

Grass

Rocks

All of the above

Chlorine shall be placed in the well in sufficient quantities to produce a chlorine residual of at least:

200ppm

500ppm

50ppm

100 ppm