Environmental Engineering The pathogens can be killed by Nitrification Chlorination None of these Oxidation Nitrification Chlorination None of these Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period for oxidation ponds is usually kept as 10 to 15 days 48 hours 24 hours 3 months 10 to 15 days 48 hours 24 hours 3 months ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Only carbonate hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only noncarbonated hardness is removed Only carbonate hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only noncarbonated hardness is removed ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 4 mm/hr 20 mm/hr 40 mm/hr 10 mm/hr 4 mm/hr 20 mm/hr 40 mm/hr 10 mm/hr ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering A pipe which is installed in the house drainage to preserve the water seal of traps is called Vent pipe Waste pipe Anti-siphonage pipe Soil pipe Vent pipe Waste pipe Anti-siphonage pipe Soil pipe ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that Large area is required for construction BOD removal is very low None of these Maintenance and operation cost are high Large area is required for construction BOD removal is very low None of these Maintenance and operation cost are high ANSWER DOWNLOAD EXAMIANS APP
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