As compared to shallow-wells, deep wells have______________?

Related Mcqs:

The percentage of filtered water, which is used for backwashing in rapid sand filters, is about______________?

A. 0.2 to 0.4 B. 0.4 to 1.0 C. 2 to 4 D. 5 to 7...

The velocity of flow does not depend on_______________?

A. grade of sewer B. length of sewer C. hydraulic mean depth of sewer D. roughness of sewer...

Sludge volume index is defined as the ratio of_______________?

A. percentage of sludge by volume to percentage of suspended solids by weight B. percentage of sludge by volume to percentage of total solids by weight C. percentage of suspended solids by weight to percentage of sludge by volume D. percentage of total solids by weight to percentage of sludge by volume...

The characteristics of fresh and septic sewage respectively are____________________?

A. acidic and alkaline B. alkaline and acidic C. both acidic D. both alkaline...

The detention period in coagulation tanks is usually kept as_______________?

A. 1 to 2 minutes B. 30 to 45 minutes C. 2 to 6 hours D. 2 to 6 days...