Environmental Engineering The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is Less than HMD when flowing full None of these Equal to HMD when flowing full Greater than HMD when flowing full Less than HMD when flowing full None of these Equal to HMD when flowing full Greater than HMD when flowing full ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to rapid sand filters, slow sand filters give (i) Slower filtration rate (ii) Higher filtration rate (iii) Lesser efficiency in removal of bacteria (iv) Higher efficiency in removal of bacteria The correct answer is (i) and (iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (ii) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Ground water is usually free from Suspended impurities Dissolved impurities None of these Both suspended and dissolved impurities Suspended impurities Dissolved impurities None of these Both suspended and dissolved impurities ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is Check valve Scour valve Sluice valve Safety valve Check valve Scour valve Sluice valve Safety valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Carbon dioxide Hydrogen sulphide Nitrogen Methane Carbon dioxide Hydrogen sulphide Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Calcium hydroxide Sodium carbonate Magnesium carbonate Calcium carbonate Calcium hydroxide Sodium carbonate Magnesium carbonate Calcium carbonate ANSWER DOWNLOAD EXAMIANS APP
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