Environmental Engineering The effective size of sand particles used in slow sand filters is 1.00 to 1.80 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Zero Given in the direction of natural slope of ground Steeper than 1 in 20 Given in the direction opposite to natural slope of ground Zero Given in the direction of natural slope of ground Steeper than 1 in 20 Given in the direction opposite to natural slope of ground ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to geometrical increase method of forecasting population, arithmetical increase method gives Lesser value Same value Higher value Accurate value Lesser value Same value Higher value Accurate value ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following compounds is widely used for algae control? Sodium sulphate Calcium chloride Sodium chloride Copper sulphate Sodium sulphate Calcium chloride Sodium chloride Copper sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The relative stability of a sewage sample, whose dissolved oxygen is same as the total oxygen required to satisfy BOD, is Infinite 100 Zero 1 Infinite 100 Zero 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Trickling filters Aerated lagoons Oxidation ditch Oxidation pond Trickling filters Aerated lagoons Oxidation ditch Oxidation pond ANSWER DOWNLOAD EXAMIANS APP
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