The most common cause of acidity in water is_______________?

Related Mcqs:

Chlorine demand of water is equal to________________?

A. applied chlorine B. residual chlorine C. sum of applied and residual chlorine D. difference of applied and residual chlorine...

The type of sewer which is suitable for both combined and separate system is_____________?

A. circular sewer B. egg shaped sewer C. horse-shoe type sewer D. semi-elliptical sewer...

The working conditions in imhoff tanks are_______________?

A. aerobic only B. anaerobic only C. aerobic in lower compartment and anaerobic in upper compartment D. anaerobic in lower compartment and aerobic in upper compartment...

The main disadvantage of cement concrete sewers is________________?

A. less strength B. difficulty in construction C. difficulty in transportation due to heavy weight D. less life...

For a given discharge, the efficiency of sedimentation tank can be increased by______________?

A. increasing the depth of tank B. decreasing the depth of tank C. increasing the surface area of tank D. decreasing the surface area of tank...