Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of None of these HCl H₂SO₄ HNO₃ None of these HCl H₂SO₄ HNO₃ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Air pressure pump Pneumatic ejector Centrifugal pump Reciprocating pump Air pressure pump Pneumatic ejector Centrifugal pump Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Pick up the incorrect statement from the following for allowing workers to enter sewers The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Proper tests for the presence of poisonous gases must be carried out The men entering the manhole should be advised to smoke in the sewer Warning signals should be erected The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Proper tests for the presence of poisonous gases must be carried out The men entering the manhole should be advised to smoke in the sewer Warning signals should be erected ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering House connections to the laterals is generally made by R.C.C. P.C.C. Glazed stonewares Cast iron R.C.C. P.C.C. Glazed stonewares Cast iron ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is 2.65 2.25 2.5 2.55 2.65 2.25 2.5 2.55 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following gases is most significant as air pollutant? Oxygen Sulphur-dioxide Carbondioxide Nitrogen Oxygen Sulphur-dioxide Carbondioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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