Environmental Engineering If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is 4000 1000 1,00,000 4,00,000 4000 1000 1,00,000 4,00,000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The distribution mains are designed for Maximum hourly demand Average daily demand Maximum daily demand Maximum hourly demand on maximum day Maximum hourly demand Average daily demand Maximum daily demand Maximum hourly demand on maximum day ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period for oxidation ponds is usually kept as 3 months 24 hours 48 hours 10 to 15 days 3 months 24 hours 48 hours 10 to 15 days ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of 10 mg/liter 1000 mg/liter 1 mg/liter 100 mg/liter 10 mg/liter 1000 mg/liter 1 mg/liter 100 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hourly variation factor is usually taken as 2.7 1.8 2.0 1.5 2.7 1.8 2.0 1.5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection efficiency is Increased at higher pH value of water Unaffected by pH value of water Reduced at higher pH value of water Highest at pH value equal to 7 Increased at higher pH value of water Unaffected by pH value of water Reduced at higher pH value of water Highest at pH value equal to 7 ANSWER DOWNLOAD EXAMIANS APP
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