Waste Water Engineering The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? 150 mm dia 100 mm dia 225 mm dia All of these 150 mm dia 100 mm dia 225 mm dia All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is? Reciprocating pump Centrifugal pump Pneumatic ejector None of these Reciprocating pump Centrifugal pump Pneumatic ejector None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Large diameter sewers subjected to external pressure alone, are reinforced Near the inner surface of the pipe With elliptical cage Both A and B Near the outer surface of the pipe Near the inner surface of the pipe With elliptical cage Both A and B Near the outer surface of the pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer that unloads the sewage at the point of treatment is called House sewer Main sewer Outfall sewer Branch sewer House sewer Main sewer Outfall sewer Branch sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is 30 m 45 m 20 m 75 m 30 m 45 m 20 m 75 m ANSWER DOWNLOAD EXAMIANS APP
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