Waste Water Engineering In trickling filter, B.O.D. is reduced to 60 to 80% 30 to 40% 40 to 60% 80 to 90% 60 to 80% 30 to 40% 40 to 60% 80 to 90% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is 25 cm 20 cm 50 cm 40 cm 25 cm 20 cm 50 cm 40 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Thrice the average demand Average demand Four times the average demand Twice the average demand Thrice the average demand Average demand Four times the average demand Twice the average demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The non-clog pump which permits solid matter to pass out with the liquid sewage, is None of these Reciprocating pump Pneumatic ejector Centrifugal pump None of these Reciprocating pump Pneumatic ejector Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? 100 mm dia 225 mm dia 150 mm dia All of these 100 mm dia 225 mm dia 150 mm dia All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally Highly decomposed Acidic A source of objectionable odour Alkaline Highly decomposed Acidic A source of objectionable odour Alkaline ANSWER DOWNLOAD EXAMIANS APP
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