Waste Water Engineering The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Skimming tanks are Those from which sludge is skimmed out Improved version of grit chambers Tanks provided with self- cleansing screens Used to remove the grease and oil Those from which sludge is skimmed out Improved version of grit chambers Tanks provided with self- cleansing screens Used to remove the grease and oil ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Kutter Chezy Manning Bazin Kutter Chezy Manning Bazin ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Parabolic shaped Horse shoe shaped Standard egg shaped Circular shaped Parabolic shaped Horse shoe shaped Standard egg shaped Circular shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Aerobic bacteria None of these Both types of bacterias Anaerobic bacteria Aerobic bacteria None of these Both types of bacterias Anaerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
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