Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Methane Carbon dioxide Oxygen Hydrogen sulphide Methane Carbon dioxide Oxygen Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer which transports the sewage to the point of treatment, is called Branch sewer Out-fall sewer House sewer Main sewer Branch sewer Out-fall sewer House sewer Main sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most effective arrangement for diverting excess storm water into a natural drainage, is Siphon spill way Leaping weir Overflow weir None of these Siphon spill way Leaping weir Overflow weir None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to All of these Initial demand Carbonaceous demand First stage demand All of these Initial demand Carbonaceous demand First stage demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 2.5 3 2 1.5 2.5 3 2 1.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The flow velocity in detritus tanks is 1.25 m/sec 0.05 m/sec 0.09 m/sec None of these 1.25 m/sec 0.05 m/sec 0.09 m/sec None of these ANSWER DOWNLOAD EXAMIANS APP
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