Waste Water Engineering In sewers the velocity of flow should not be More than 20 m/sec More than the self-cleansing velocity Less than 10 m/sec Less than the self-cleansing velocity More than 20 m/sec More than the self-cleansing velocity Less than 10 m/sec Less than the self-cleansing velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Before discharging the foul sewage into rivers, it is generally treated by Screening Oxidation Sedimentation All listed here Screening Oxidation Sedimentation All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is Q/(B × L) Q/(B × D) Q/L Q/(L × D) Q/(B × L) Q/(B × D) Q/L Q/(L × D) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 1.5 2.5 3 2 1.5 2.5 3 2 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 7 days 14 days 12 days 2 days 7 days 14 days 12 days 2 days 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 80,000 to 10,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
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