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 0.01 mm Less than 0.05 mm Greater than 0.1 mm Less than 0.1 mm Less than 0.01 mm Less than 0.05 mm Greater than 0.1 mm Less than 0.1 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For evaporation and measurement of settable solids, the apparatus used, is A jar An Imhoff cone A breaker A test tube A jar An Imhoff cone A breaker A test tube ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 24 to 36 hours 16 to 24 hours 8 to 16 hours 4 to 8 hours 24 to 36 hours 16 to 24 hours 8 to 16 hours 4 to 8 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, Is trebled Is only provided Is doubled Is not enough Is trebled Is only provided Is doubled Is not enough ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes are the manholes Without entry ladders With depths more than 3.5 m Without manhole covers Having drains at different levels Without entry ladders With depths more than 3.5 m Without manhole covers Having drains at different levels 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 0.35 m/sec 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec 0.30 m/sec 0.40 m/sec 0.45 m/sec ANSWER DOWNLOAD EXAMIANS APP
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