Waste Water Engineering A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is 5000 100 1000 10000 5000 100 1000 10000 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering With self cleansing velocity in sewers Both silting and scouring occur at bottom Neither silting nor scouring occurs at bottom Scouring occurs at bottom Silting occurs at bottom Both silting and scouring occur at bottom Neither silting nor scouring occurs at bottom Scouring occurs at bottom Silting occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Under estimates of maximum and average flows Unexpected increase in the population All of these Unexpected large scale infiltration of stream water Under estimates of maximum and average flows Unexpected increase in the population All of these Unexpected large scale infiltration of stream water ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the effect of scouring is more on All sides Horizontal side Bottom side Top side All sides Horizontal side Bottom side Top side ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 10% less 20% more 20% less 10% more 10% less 20% more 20% less 10% more ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a grit chamber, if the recommended velocity of flow is 0.2 m/sec and detention period is 2 minutes, the length of the tank, is 30 m 20 m 24 m 16 m 30 m 20 m 24 m 16 m ANSWER DOWNLOAD EXAMIANS APP
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