Environmental Engineering Orthotolidine test is used for determination of Residual chlorine Dissolved oxygen Dose of coagulant Biochemical oxygen demand Residual chlorine Dissolved oxygen Dose of coagulant Biochemical oxygen demand ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by Chlorination None of these Oxidation Nitrification Chlorination None of these Oxidation Nitrification ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Oxidation ditch Oxidation pond Trickling filters Aerated lagoons Oxidation ditch Oxidation pond Trickling filters Aerated lagoons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided At the foot of rising main along the slope to prevent back running of water At every summit of rising mains At street corners to control the flow of water At every depression and dead ends to drain out the waste water that may collect there At the foot of rising main along the slope to prevent back running of water At every summit of rising mains At street corners to control the flow of water At every depression and dead ends to drain out the waste water that may collect there ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that Large area is required for construction None of these Maintenance and operation cost are high BOD removal is very low Large area is required for construction None of these Maintenance and operation cost are high BOD removal is very low ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is To decrease it Fluctuating Nil To increase it To decrease it Fluctuating Nil To increase it ANSWER DOWNLOAD EXAMIANS APP