Environmental Engineering Orthotolidine test is used for determination of Biochemical oxygen demand Dose of coagulant Residual chlorine Dissolved oxygen Biochemical oxygen demand Dose of coagulant Residual chlorine Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Residual chlorine in water is determined by Both (A) and (B) Orthotolidine method Starch iodide method None of these Both (A) and (B) Orthotolidine method Starch iodide method None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The disinfection efficiency of chlorine increases by (i) Decreasing the time of contact (ii) Decreasing the temperature of water (iii) Increasing the temperature of water Both (i) and (iii) Both (i) and (ii) Only (i) Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effective size of sand particles used in slow sand filters is 0.35 to 0.60 mm 0.25 to 0.35 mm 0.60 to 1.00 mm 1.00 to 1.80 mm 0.35 to 0.60 mm 0.25 to 0.35 mm 0.60 to 1.00 mm 1.00 to 1.80 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The ratio of 5 day BOD to ultimate BOD is about 43894 1 43864 43833 43894 1 43864 43833 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The water carriage system of collection of waste product Is cheaper in initial cost than dry conservancy system Requires treatment before disposal All of these Creates hygienic problem Is cheaper in initial cost than dry conservancy system Requires treatment before disposal All of these Creates hygienic problem ANSWER DOWNLOAD EXAMIANS APP
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