A. Velocity of flow
B. Diameter of the sewer
C. Discharge
D. All the above
The gradient of sewers depends upon_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 1 day
B. 2 days
C. 3 days
D. 5 days
The standard B.O.D. of water is taken for_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. One hour
B. Two to three hours
C. Three to four hours
D. Six hours
Fresh sewage may become stale in_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 100 cm
B. 110 cm
C. 120 cm
D. 150 cm
A. Invert level of a branch sewer is more than 60 cm that of the main sewer
B. Sewer line runs along a main road
C. Ordinary manhole cannot be built
D. Two sewer lines intersect
Drop manholes at the junctions of sewer lines, are provided if________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Carbon dioxide
B. Hydrogen
C. Ammonia
D. All the above
During purification process of sewage the gas given off, is________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. House sewers
B. Lateral sewers
C. Branch sewers
D. Main sewers
The sewerage system originates from__________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Anaerobic bacteria
B. Aerobic bacteria
C. Both types of bacterias
D. None of these
In septic tanks, decomposition of organic bacteria, is done by_____________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Minimum flow
B. Maximum flow
C. Both A. and B.
D. None of these
Sewer pipes need be checked for_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. D8/3 = 4 b8/3
B. D3/8 = 4 b3/8
C. D2/3 = 4 b2/3
D. D3/2 = 4 b3/2
hydraulically equivalent, the relationship which holds good, is _______________? Read More »
Civil Engineering Mcqs, Waste Water Engineering