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Waste Water Engineering

Large diameter sewers subjected to external pressure alone, are reinforced ______________________?

Civil Engineering Mcqs, Waste Water Engineering /
Large diameter sewers subjected to external pressure alone, are reinforced ______________________?

A. Near the inner surface of the pipe
B. Near the outer surface of the pipe
C. Both A. and B.
D. With elliptical cage

Large diameter sewers subjected to external pressure alone, are reinforced ______________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is____________________?

Civil Engineering Mcqs, Waste Water Engineering /
The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is____________________?

A. 1.5
B. 2.0
C. 3.0
D. 4.0

The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is____________________?

Civil Engineering Mcqs, Waste Water Engineering /
For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is____________________?

A. Cast iron sewers
B. Cement concrete sewers
C. Glazed bricks sewers
D. Stone ware sewers

For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is____________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is __________________?

Civil Engineering Mcqs, Waste Water Engineering /
The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is __________________?

A. 5 m
B. 5.5 m
C. 6.5 m
D. 7 m

The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is __________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The normal values of over flow rates for secondary sedimentation tanks, ranges between__________________?

Civil Engineering Mcqs, Waste Water Engineering /
The normal values of over flow rates for secondary sedimentation tanks, ranges between__________________?

A. 25,000 to 35,000 litres/sqm/day
B. 40,000 to 50,000 litres/sqm/day
C. 50,000 to 60,000 litres/sqm/day
D. 80,000 to 10,000 litres/sqm/day

The normal values of over flow rates for secondary sedimentation tanks, ranges between__________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed________________?

Civil Engineering Mcqs, Waste Water Engineering /
For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed________________?

A. 1.5
B. 2.0
C. 2.5
D. 3.0

For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

Boussinesq’s equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is__________________?

Civil Engineering Mcqs, Waste Water Engineering /
Boussinesq’s equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is__________________?

A. pt = 3H3p/2 Z5
B. pt = 2H3p/3 Z5
C. pt = 3H3p/2Z5
D. pt = 2 3p/3Z5

Boussinesq’s equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is__________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering