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Civil Engineering Mcqs

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

The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________?

Civil Engineering Mcqs, Waste Water Engineering /
The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________?

A. 0.05552 cumec
B. 0.05554 cumec
C. 0.05556 cumec
D. 0.0556 cumec

The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called ____________________?

Civil Engineering Mcqs, Waste Water Engineering /
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called ____________________?

A. Inverted syphon
B. Depressed sewer
C. Sag pipe
D. all of these

The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called ____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering