The design period in years for pumg plants, is___________________?
A. 1
B. 2 to 3
C. 3 to 5
D. 5 to 10
Waste Water Engineering
A manhole is generally provided at each__________________?
A manhole is generally provided at each__________________?
A. Bend
B. Junction
C. Change of gradient
D. All the above
A nuisance is experienced in diluting water if dilution factor is less than_________________?
A nuisance is experienced in diluting water if dilution factor is less than_________________?
A. 100
B. 60
C. 40
D. 20
If the side of a square sewer is 1000 mm, the diameter of a hydraulically equivalent circular section, is___________________?
If the side of a square sewer is 1000 mm, the diameter of a hydraulically equivalent circular section, is___________________?
A. 1045 mm
B. 1065 mm
C. 1075 mm
D. 1095 mm
In detritus tanks______________________?
In detritus tanks______________________?
A. Flow velocity is kept 0.09 m/sec
B. Detention period is kept 3 to 4 minutes
C. Organic and inorganic materials are separated
D. All the above
The screens are fixed___________________?
The screens are fixed___________________?
A. Perpendicular to the direction of flow
B. Parallel to the direction of flow
C. At an angle 30° to 60° to the direction of flow
D. None of these
Pathogens (or pathogenic bacterias) in water may cause___________________?
Pathogens (or pathogenic bacterias) in water may cause___________________?
A. Typhoid
B. Cholera
C. Dysentery
D. All the above
The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in__________________?
The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in__________________?
A. Chezy’s formula
B. Bazin’s formula
C. Kutter’s formula
D. Manning’s formula
For large sewers, maximum distance between manholes may be_______________?
For large sewers, maximum distance between manholes may be_______________?
A. 50 m
B. 100 m
C. 200 m
D. 300 m
For sewers, inverted siphon is provided for___________________?
For sewers, inverted siphon is provided for___________________?
A. One pipe
B. Two pipes
C. Three pipes
D. Four pipes