Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Less than 0.1 mm Less than 0.05 mm Less than 0.01 mm Greater than 0.1 mm Less than 0.1 mm Less than 0.05 mm Less than 0.01 mm Greater than 0.1 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The effluent of a septic tank is As good as that from a complete treatment None of these Foul and contains dissolved and suspended solids Fit for discharge into any open drain As good as that from a complete treatment None of these Foul and contains dissolved and suspended solids Fit for discharge into any open drain ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.40 m/sec 0.45 m/sec 0.35 m/sec 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec 0.30 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is 208 cu.m 212 cu.m 216 cu.m 204 cu.m 208 cu.m 212 cu.m 216 cu.m 204 cu.m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is Q/L Q/(B × D) Q/(B × L) Q/(L × D) Q/L Q/(B × D) Q/(B × L) Q/(L × D) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drop man holes are generally provided in sewers for Industrial areas Hilly town ships Cities in plains Large town ships Industrial areas Hilly town ships Cities in plains Large town ships ANSWER DOWNLOAD EXAMIANS APP
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