A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is_____________________?

Related Mcqs:

A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is____________________?

A. 100 B. 1000 C. 5000 D. 10000...

A rain sanitary sewer is constructed to carry_________________ ?

A. Sanitary sewage B. Storm sewage C. Surface water D. Ground 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...

In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is____________________?

A. [(100 + P1)/(100 – P2)] V1 B. [(100 – P1)/(100 + P2)] V1 C. [(100 – P1)/(100 – P2)] V1 D. [(100 + P2)/(100 – P1)] V1...

Nitrogen cycle of sewage, is____________________?

A. Liberation of ammonia-formation of nitrites-formation of nitrates-liberation of nitrogen B. Liberation of nitrogen-liberation of ammonia-formation of nitrites- formation of nitrates C. Liberation of nitrogen-formation of nitrates-formation of nitrites-liberation of ammonia D. Formation of nitrates-formation of nitrites-liberation of nitrates-liberation of nitrates...