In a sludge tank, the gas mainly produced, is_________________?
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxide
In a sludge tank, the gas mainly produced, is_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxide
In a sludge tank, the gas mainly produced, is_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. Nitrates
B. Nitrites
C. Free ammonia
D. None of these
A well oxidized sewage contains nitrogen mainly as___________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 100 mg/l
B. 200 mg/l
C. 300 mg/l
D. 400 mg/l
A. Velocity at dry weather flow
B. Velocity of water at flushing
C. Velocity at which no accumulation remains in the drains
D. Velocity of water in a pressure filter
Self-cleansing velocity is__________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. d = 0.2 B
B. d = 0.5 B
C. B = 0.2 d
D. B = 0.5 d
15 cumecs, the depth d and width are related by For drains up to___________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 30 litres/person/year
B. 25 litres/person/year
C. 30 litres/person/month
D. 25 litres/person/month
A. Filtration process is used
B. Biological action is used
C. Neither A. nor B.
D. Both A. and B.
In a trickling filter_________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 2 hours
B. 4 hours
C. 6 hours
D. 8 hours
A. Steel pipes
B. Steel shell coated from inside with cement mortar
C. Steel shell coated from outside with cement mortar
D. Both B. and C.
Hume steel pipes are__________________? Read More »
Civil Engineering Mcqs, Waste Water Engineering A. 4 to 8 hours
B. 8 to 16 hours
C. 16 to 24 hours
D. 24 to 36 hours