Lead acetate test in sewer manhole is done to test the presence of ____________________?

Related Mcqs:

The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is__________________?

A. 0.10 cumec B. 0.12 cumec C. 0.15 cumec D. 0.20 cumec...

In trickling filter, B.O.D. is reduced to___________________?

A. 30 to 40% B. 40 to 60% C. 60 to 80% D. 80 to 90%...

The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in__________________?

A. Chezy’s formula B. Bazin’s formula C. Kutter’s formula D. Manning’s formula...

For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed__________________?

A. 1.5 B. 2.0 C. 2.5 D. 3.0...

The gas evolved in sewers is________________?

A. Carbondioxide B. Hydrogen sulphide C. Methane D. All of these...