A. H2SO4
B. HNO3
C. HCl
D. None of these
A. More than the self-cleansing velocity
B. Less than the self-cleansing velocity
C. Less than 10 m/sec
D. More than 20 m/sec
In sewers the velocity of flow should not be_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Top side
B. Bottom side
C. Horizontal side
D. All sides
In sewers the effect of scouring is more on__________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Distances 150 m to 300 m
B. Upper ends of branch sewers
C. Every change in the size of sewers
D. All the above
Sewer ventilating columns are generally placed at_______________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Q/(B × D)
B. Q/(L × D)
C. Q/L
D. Q/(B × L)
A. Bio-Chemical Oxygen Demand (B.O.D.)
B. Dissolved Oxygen (D.O.)
C. Chemical Oxygen Demand (C.O.D.)
D. None of these
A. 90 %
B. 95 %
C. 99 %
D. 9.9 %
Water content of sewage is about___________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Parabolic
B. Circular
C. Rectangular
D. New egged
A. Hydrology
B. Dissolved oxygen in water
C. Temperature
D. All the above
The factor responsible for purification of sewage in river is________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 45 %
B. 50 %
C. 55 %
D. 60 %
