FlexiQuiz - WELL CONTRACTORS CERTIFICATION WELL DEVELOPMENT QUIZ

What has most to do with occurrence of incrustation on wells screen

Water quality

Dissolved substances in water

Substance introduced in water

All of the above

What are the major classes of variable displacement pumps

Centrifugal

Jet

Air lift

All of the above

A well construction permit is valid for up to _____ years

3

2

5

7

What are the instances where disinfection of a well should take place

After construction

After repair

Opening any part of the system

All of the above

Some forms of corrosion

Rusting

Pitting

Cracking

All of the above

WELL CONTRACTORS CERTIFICATION WELL DEVELOPMENT QUIZ