Waste Water Engineering The sewage treatment in septic tanks is due to Aerobic decomposition None of these Parasitic decomposition Anaerobic decomposition Aerobic decomposition None of these Parasitic decomposition Anaerobic decomposition ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 15 days 30 days 60 days 90 days 15 days 30 days 60 days 90 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hume steel pipes are Steel pipes Steel shell coated from inside with cement mortar Both B and C Steel shell coated from outside with cement mortar Steel pipes Steel shell coated from inside with cement mortar Both B and C Steel shell coated from outside with cement mortar ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Equal to zero Equal to 7 More than 7 Less than 7 Equal to zero Equal to 7 More than 7 Less than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HCl H₂SO₄ None of these HNO₃ HCl H₂SO₄ None of these HNO₃ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Facultative bacteria survive in Neither A nor B Both cases A and B The presence of oxygen The absence of oxygen Neither A nor B Both cases A and B The presence of oxygen The absence of oxygen ANSWER DOWNLOAD EXAMIANS APP
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