Alum as a coagulant is found to be most effective when pH range of water is______________?

Related Mcqs:

Turbidity is measured on_______________?

A. standard silica scale B. standard cobalt scale C. standard platinum scale D. platinum cobalt scale...

The suitable layout of a distribution system for irregularly growing town is_______________?

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

For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as___________________?

A. 4.5 to 6.0 B. 6.5 to 8.0 C. 8.5 to 10.0 D. 10.5 to 12.0...

The specific gravity of sewage is_______________?

A. much greater than 1 B. slightly less than 1 C. equal to 1 D. slightly greater than 1...

The settling velocity of a particle in a sedimentation tank increases if_________________?

A. particle size is decreased B. the surface area of tank is increased C. the depth of tank is decreased D. none of the above...