Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is 1 in 100 1 in 60 None of these 1 in 120 1 in 100 1 in 60 None of these 1 in 120 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Hydrogen sulphide Methane Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In areas where rainy season is limited to a few months, the type of sewerage system recommended is Separate system Combined system None of these Partially separate system Separate system Combined system None of these Partially separate system ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Facultative bacteria survive in Neither A nor B The absence of oxygen Both cases A and B The presence of oxygen Neither A nor B The absence of oxygen Both cases A and B The presence of oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Skimming tanks are Used to remove the grease and oil Improved version of grit chambers Tanks provided with self- cleansing screens Those from which sludge is skimmed out Used to remove the grease and oil Improved version of grit chambers Tanks provided with self- cleansing screens Those from which sludge is skimmed out ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Depletion of ozone layer in the outer atmosphere may cause Skin cancer Bronchitis Heart disorder Lung cancer Skin cancer Bronchitis Heart disorder Lung cancer ANSWER DOWNLOAD EXAMIANS APP
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