Waste Water Engineering The first stage of neutral process of sludge digestion, is Acid fermentation None of these Acid regression Alkaline fermentation Acid fermentation None of these Acid regression Alkaline fermentation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 4 to 8 hours 24 to 36 hours 8 to 16 hours 16 to 24 hours 4 to 8 hours 24 to 36 hours 8 to 16 hours 16 to 24 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is 100 mg/l 400 mg/l 200 mg/l 300 mg/l 100 mg/l 400 mg/l 200 mg/l 300 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes need be checked for Maximum flow Minimum flow Both A and B None of these Maximum flow Minimum flow Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The design period in years for pumping plants, is 5 to 10 2 to 3 1 3 to 5 5 to 10 2 to 3 1 3 to 5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.40 m/sec 0.30 m/sec 0.35 m/sec 0.45 m/sec 0.40 m/sec 0.30 m/sec 0.35 m/sec 0.45 m/sec ANSWER DOWNLOAD EXAMIANS APP
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