The chemical most commonly used to increase speed of sedimentation of sewage is_______________?

Related Mcqs:

Residual chlorine in water is determined by________________?

A. starch iodide method B. orthotolidine method C. both (A) and (B) D. none of the above...

The suitable layout of distribution system for a city with roads of rectangular pattern is______________?

A. grid iron system B. dead end system C. ring system D. radial system...

Composting and lagooning are the methods of_______________?

A. sludge digestion B. sludge disposal C. sedimentation D. filtration...

Corrosion in concrete sewers is caused by______________?

A. septic conditions B. dissolved oxygen C. chlorine D. nitrogen...

Double filtration is used_______________?

A. to increase the filtration slow sand filters capacity of B. to increase the filtration rapid sand filters capacity of C. for isolated buildings like pools, hotels etc swimming D. all of the above...