A rainfall may be classified as acidic if its pH value is less or equal to________________?

Related Mcqs:

Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is ?

A. Centrifugal pump B. Pneumatic ejector C. Reciprocating pump D. None of these...

are available in size Stoneware sewers________________?

A. 10 cm B. 15 cm C. 20 cm D. All the above...

In detritus tanks______________________?

A. Flow velocity is kept 0.09 m/sec B. Detention period is kept 3 to 4 minutes C. Organic and inorganic materials are separated D. All the above...

The algae dies out in the zone of_____________________?

A. Degradation B. Active decomposition C. Recovery D. Cleaner water...

Drop manholes at the junctions of sewer lines, are provided if________________?

A. Invert level of a branch sewer is more than 60 cm that of the main sewer B. Sewer line runs along a main road C. Ordinary manhole cannot be built D. Two sewer lines intersect...