Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 25 litres/person/year 30 litres/person/year 25 litres/person/month 30 litres/person/month 25 litres/person/year 30 litres/person/year 25 litres/person/month 30 litres/person/month 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 50 mg/l 150 mg/l 100 mg/l 250 mg/l 50 mg/l 150 mg/l 100 mg/l 250 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum depth of sedimentation tanks, is kept 3.5 m 4 m 3 m 4.5 m 3.5 m 4 m 3 m 4.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Circular shaped Standard egg shaped Horse shoe shaped Parabolic shaped Circular shaped Standard egg shaped Horse shoe shaped Parabolic shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The recommended detention period for grit chambers is 5 minutes 2 minutes 1 minute 3 minutes 5 minutes 2 minutes 1 minute 3 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Flocculated particles do not change their Shape None of these Size Weight Shape None of these Size Weight ANSWER DOWNLOAD EXAMIANS APP
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