Environmental Engineering Period of cleaning of slow sand filters is about 24 - 48 hours 2 - 3 months 1 - 2 year 10 - 12 days 24 - 48 hours 2 - 3 months 1 - 2 year 10 - 12 days ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Composting and lagooning are the methods of Filtration Sedimentation Sludge disposal Sludge digestion Filtration Sedimentation Sludge disposal Sludge digestion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is Inversely proportional to BOD remaining Directly proportional to BOD satisfied Inversely proportional to BOD satisfied Directly proportional to BOD remaining Inversely proportional to BOD remaining Directly proportional to BOD satisfied Inversely proportional to BOD satisfied Directly proportional to BOD remaining ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Reduction Oxidation Dehydration Alkalinization Reduction Oxidation Dehydration Alkalinization ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The devices which are installed for drawing water from the sources are called Filters Aquiclude Aquifers Intakes Filters Aquiclude Aquifers Intakes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/minute 15 to 30 cm/hour 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/hour 15 to 30 cm/sec 5 to 10 cm/sec ANSWER DOWNLOAD EXAMIANS APP
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