Category: Waste Water Engineering

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

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

A. 1/3
B. 0/2
C. 0/3
D. 2 /3

A. Settleable solids
B. Suspended solids
C. Dissolved solids
D. None of these

A. Industrial sewage
B. Domestic sewage
C. Storm water
D. Inclusive of domestic and industrial sewage but excludes storm water

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

A. Unexpected large scale infiltration of stream water
B. Unexpected increase in the population
C. Under estimates of maximum and average flows
D. All of the above

A. 1.095
B. 1.085
C. 1.075
D. 1.065

A. 65 to 70%
B. 70 to 75%
C. 75 to 80%
D. 85%

A. 1 in 5
B. 1 in 10
C. 1 in 15
D. 1 in 20