Category: Waste Water Engineering

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

A. Screening
B. Sedimentation
C. Oxidation
D. All the above

A. Fit for discharge into any open drain
B. Foul and contains dissolved and suspended solids
C. As good as that from a complete treatment
D. None of these

A. 0.9 cm
B. 1.2 m
C. 1.5 m
D. > 1.5 m

A. Size of the sewer
B. Shape of the sewer
C. Roughness of sewer surface
D. All the above

A. Velocity at dry weather flow
B. Velocity of water at flushing
C. Velocity at which no accumulation remains in the drains
D. Velocity of water in a pressure filter

A. A trunk sewer
B. An outfall sewer
C. A main sewer
D. An intercepting sewer