Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Degradation Cleaner water Active decomposition Recovery Degradation Cleaner water Active decomposition Recovery ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The intensity of rain is expressed in None of these cm/minute cm/day cm/hour None of these cm/minute cm/day cm/hour ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic bacterias Oxidise organic matter in sewage All of these Flourish in the presence of free oxygen Consume organic matter as their food Oxidise organic matter in sewage All of these Flourish in the presence of free oxygen Consume organic matter as their food ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is 1 hour 2 hours 1 hour and 30 minutes 30 minutes 1 hour 2 hours 1 hour and 30 minutes 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 150 ppm 200 ppm 100 ppm 50 ppm 150 ppm 200 ppm 100 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Boussinesq’s equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is pt = 3H3p/2 Z5 pt = 3H3p/2 Z5 pt = 2H3p/3 Z5 pt = 2H3p/3 Z5 pt = 3H3p/2 Z5 pt = 3H3p/2 Z5 pt = 2H3p/3 Z5 pt = 2H3p/3 Z5 ANSWER DOWNLOAD EXAMIANS APP
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