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Waste Water Engineering

A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is_____________________?

Civil Engineering Mcqs, Waste Water Engineering /
A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is_____________________?

A. 2.30 m
B. 2.40 m
C. 2.45 m
D. 2.50 m

A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is_____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The quantity of liquid waste which flows in sewers during the period of rainfall, is known__________________?

Civil Engineering Mcqs, Waste Water Engineering /
The quantity of liquid waste which flows in sewers during the period of rainfall, is known__________________?

A. Sanitary sewage
B. Industrial waste
C. Storm sewage
D. None of these

The quantity of liquid waste which flows in sewers during the period of rainfall, is known__________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

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____________________?

Civil Engineering Mcqs, Waste Water Engineering /
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 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____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be__________________?

Civil Engineering Mcqs, Waste Water Engineering /
The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be__________________?

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

The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be__________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is_____________________?

Civil Engineering Mcqs, Waste Water Engineering /
If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is_____________________?

A. 50 ppm
B. 100 ppm
C. 150 ppm
D. 200 ppm

If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is_____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering