Environmental Engineering The minimum and maximum diameters of sewers shall preferably be 15 cm and 300 cm 15 cm and 100 cm 30 cm and 450 cm 60 cm and 300 cm 15 cm and 300 cm 15 cm and 100 cm 30 cm and 450 cm 60 cm and 300 cm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Dissolved oxygen Chlorine Septic conditions Nitrogen Dissolved oxygen Chlorine Septic conditions Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided At street corners to control the flow of water At the foot of rising main along the slope to prevent back running of water At every summit of rising mains At every depression and dead ends to drain out the waste water that may collect there At street corners to control the flow of water At the foot of rising main along the slope to prevent back running of water At every summit of rising mains At every depression and dead ends to drain out the waste water that may collect there ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The alum, when added as a coagulant in water Does not require alkalinity in water for flocculation Does not affect pH value of water Increases pH value of water Decreases pH value of water Does not require alkalinity in water for flocculation Does not affect pH value of water Increases pH value of water Decreases pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that Large area is required for construction BOD removal is very low None of these Maintenance and operation cost are high Large area is required for construction BOD removal is very low None of these Maintenance and operation cost are high ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Calcium carbonate Sodium carbonate Magnesium carbonate Calcium hydroxide Calcium carbonate Sodium carbonate Magnesium carbonate Calcium hydroxide ANSWER DOWNLOAD EXAMIANS APP
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