Waste Water Engineering The recommended detention period for grit chambers is 1 minute 3 minutes 2 minutes 5 minutes 1 minute 3 minutes 2 minutes 5 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is 5 20 15 10 5 20 15 10 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering depends upon The Chezy’s constant C in the formula V = C Shape of the sewer All listed here Roughness of sewer surface Size of the sewer Shape of the sewer All listed here Roughness of sewer surface Size of the sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the velocity of flow should not be Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for secondary sedimentation tanks, ranges between 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is 1 in 100 1 in 60 1 in 120 None of these 1 in 100 1 in 60 1 in 120 None of these ANSWER DOWNLOAD EXAMIANS APP
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