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Waste Water Engineering

The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is_____________________?

Civil Engineering Mcqs, Waste Water Engineering /
The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is_____________________?

A. 204 cu.m
B. 208 cu.m
C. 212 cu.m
D. 216 cu.m

The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is_____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities_________________?

Civil Engineering Mcqs, Waste Water Engineering /
Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities_________________?

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

Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities_________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

For design purposes, the normal rate of infiltration of ground water into the sewer, is___________________?

Civil Engineering Mcqs, Waste Water Engineering /
For design purposes, the normal rate of infiltration of ground water into the sewer, is___________________?

A. 500 litres/km/cm
B. 1000 litres/km/cm
C. 1500 litres/km/cm
D. 2000 litres/km/cm

For design purposes, the normal rate of infiltration of ground water into the sewer, is___________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering