Waste Water Engineering In sewers the velocity of flow should not be More than the self-cleansing velocity More than 20 m/sec Less than the self-cleansing velocity Less than 10 m/sec More than the self-cleansing velocity More than 20 m/sec Less than the self-cleansing velocity Less than 10 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is 45 m 30 m 20 m 75 m 45 m 30 m 20 m 75 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The intensity of rain is expressed in cm/minute cm/day cm/hour None of these cm/minute cm/day cm/hour None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 150 mg/l 100 mg/l 50 mg/l 250 mg/l 150 mg/l 100 mg/l 50 mg/l 250 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Kutter Chezy Bazin Manning Kutter Chezy Bazin Manning ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The non-clog pump which permits solid matter to pass out with the liquid sewage, is Pneumatic ejector Centrifugal pump None of these Reciprocating pump Pneumatic ejector Centrifugal pump None of these Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
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