Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 60 days 90 days 30 days 15 days 60 days 90 days 30 days 15 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In very first stage of decomposition of the organic matter in sewage Carbondioxide is formed Nitrates are formed Ammonia is formed Nitrites are formed Carbondioxide is formed Nitrates are formed Ammonia is formed Nitrites are formed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 1.5 2 3 2.5 1.5 2 3 2.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Initial demand Carbonaceous demand All of these First stage demand Initial demand Carbonaceous demand All of these First stage demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in Bazin’s formula Kutter’s formula Manning’s formula Chezy’s formula Bazin’s formula Kutter’s formula Manning’s formula Chezy’s formula ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is 90 cm 100 cm 50 cm 80 cm 90 cm 100 cm 50 cm 80 cm ANSWER DOWNLOAD EXAMIANS APP
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