Waste Water Engineering Traps Dissolve the foul gases Are water seals which prevent the entry of foul gases Are used to trap the rats entering sewers Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases Are water seals which prevent the entry of foul gases Are used to trap the rats entering sewers Create symphonic action to increase the quick disposal of sewerage ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Maximum permissible velocity 1.5 m/sec, is adopted in drains Both A. and B. Neither A. nor B. Lined with stones With beds of rocks and gravels Both A. and B. Neither A. nor B. Lined with stones With beds of rocks and gravels ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During purification process of sewage the gas given off, is Ammonia All listed here Hydrogen Carbon dioxide Ammonia All listed here Hydrogen Carbon dioxide 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 and 30 minutes 30 minutes 1 hour 2 hours 1 hour and 30 minutes 30 minutes 1 hour 2 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for sedimentation tanks using coagulant, 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 100,000 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 100,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is 50 cm 20 cm 25 cm 40 cm 50 cm 20 cm 25 cm 40 cm ANSWER DOWNLOAD EXAMIANS APP
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