Waste Water Engineering The rate of accumulation of sludge per person per year, is 25 litres 10 litres 15 litres 20 litres 25 litres 10 litres 15 litres 20 litres 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 HNO₃ None of these HCl H₂SO₄ HNO₃ None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be > 1.5 m 1.2 m 0.9 cm 1.5 m > 1.5 m 1.2 m 0.9 cm 1.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is d² (0.011d + 0.785H)/Q d (0.285d + 0.011H)/Q d (0.022d + 0.085H)/Q d (0.785d + 0.011H)/Q d² (0.011d + 0.785H)/Q d (0.285d + 0.011H)/Q d (0.022d + 0.085H)/Q d (0.785d + 0.011H)/Q ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Less than 7 More than 7 Equal to zero Equal to 7 Less than 7 More than 7 Equal to zero Equal to 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 8 to 16 hours 16 to 24 hours 24 to 36 hours 4 to 8 hours 8 to 16 hours 16 to 24 hours 24 to 36 hours 4 to 8 hours ANSWER DOWNLOAD EXAMIANS APP
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