Waste Water Engineering The clarigesters are Circular Imhoff double storey tanks without bottom hoppers Circular septic tanks Circular Imhoff double tanks with bottom hoppers Rectangular septic tanks Circular Imhoff double storey tanks without bottom hoppers Circular septic tanks Circular Imhoff double tanks with bottom hoppers Rectangular septic tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is 20 cm 40 cm 25 cm 50 cm 20 cm 40 cm 25 cm 50 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 5 years 4 years 3.5 years 3 years 5 years 4 years 3.5 years 3 years ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Reciprocating pump Centrifugal pump Pneumatic ejector Air pressure pump Reciprocating pump Centrifugal pump Pneumatic ejector Air pressure pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HNO₃ HCl None of these H₂SO₄ HNO₃ HCl None of these H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Inter-distance between ventilation columns in a sewer line is kept 25 to 50 m 100 m to 150 m 50 m to 100 m 150 m to 300 m 25 to 50 m 100 m to 150 m 50 m to 100 m 150 m to 300 m ANSWER DOWNLOAD EXAMIANS APP
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