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Civil Engineering Mcqs

For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed__________________?

Civil Engineering Mcqs, Waste Water Engineering /
For sewer mains of 0.5 to 1 m diameter, the ratio of 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 sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed__________________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________?

Civil Engineering Mcqs, Waste Water Engineering /
In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________?

A. D
B. D /2
C. D/3
D. D/4

In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________? Read More »

Civil Engineering Mcqs, Waste Water Engineering

The detention time (t) of a settling tank, may be defined as the time required for_________________?

Civil Engineering Mcqs, Waste Water Engineering /
The detention time (t) of a settling tank, may be defined as the time required for_________________?

A. A particle to travel along its length
B. A particle to travel from top surface to bottom sludge zone
C. The flow of sewage to fill the tank
D. None of these

The detention time (t) of a settling tank, may be defined as the time required for_________________? Read More »

Civil Engineering Mcqs, 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