Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to First stage demand Carbonaceous demand Initial demand All of these First stage demand Carbonaceous demand Initial demand All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic bacterias Consume organic matter as their food Oxidise organic matter in sewage Flourish in the presence of free oxygen All of these Consume organic matter as their food Oxidise organic matter in sewage Flourish in the presence of free oxygen All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The algae dies out in the zone of Recovery Degradation Cleaner water Active decomposition Recovery Degradation Cleaner water Active decomposition ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by Kutter Bazin Crimp and Bruges William-Hazen Kutter Bazin Crimp and Bruges William-Hazen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is 110 cm 120 cm 100 cm 150 cm 110 cm 120 cm 100 cm 150 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is 1.15 D 1.75 D 1.5 D 1.25 D 1.15 D 1.75 D 1.5 D 1.25 D ANSWER DOWNLOAD EXAMIANS APP
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