Waste Water Engineering

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

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

A. 26.88 cumecs
B. 27.88 cumecs
C. 28.88 cumecs
D. 29.88 cumecs

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

A. Hydrogen sulphide
B. Carbon dioxide
C. Methane
D. Oxygen

A. Alum
B. Ferric chloride
C. Ferric sulphate
D. Chlorinated copperas

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

A. The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge
B. The sewer pipes of sizes greater than 0.4 m diameter are designed as running 2/3rd or 3/4th full at maximum discharge
C. The minimum design velocity of sewer pipes is taken as 0.8 m/sec
D. All the above

A. 15 days
B. 30 days
C. 60 days
D. 90 days

A. Less than 150
B. Between 150 to 200
C. Between 200 to 300
D. More than 500