Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/minute 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/hour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following sewers is preferred for combined system of sewage? Rectangular sewer Egg shaped sewer None of these Circular sewer Rectangular sewer Egg shaped sewer None of these Circular sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 20 to 25 10 to 15 30 to 35 40 to 50 20 to 25 10 to 15 30 to 35 40 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Hydrogen sulphide Carbon dioxide Nitrogen Methane Hydrogen sulphide Carbon dioxide Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In chlorination, with the rise in temperature of water, death rate of bacteria Decreases None of these Increases Remains unaffected Decreases None of these Increases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Grade of sewer Length of sewer Hydraulic mean depth of sewer Roughness of sewer Grade of sewer Length of sewer Hydraulic mean depth of sewer Roughness of sewer ANSWER DOWNLOAD EXAMIANS APP
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