Environmental Engineering In lime-soda process Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Only carbonate hardness is removed Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Only carbonate hardness is removed Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only noncarbonated hardness is removed ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is Same Smaller None of these Larger Same Smaller None of these Larger ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most common cause of acidity in water is Nitrogen Oxygen Hydrogen Carbon dioxide Nitrogen Oxygen Hydrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Turbidity is measured on Standard cobalt scale Platinum cobalt scale Standard platinum scale Standard silica scale Standard cobalt scale Platinum cobalt scale Standard platinum scale Standard silica scale ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection efficiency is Highest at pH value equal to 7 Reduced at higher pH value of water Unaffected by pH value of water Increased at higher pH value of water Highest at pH value equal to 7 Reduced at higher pH value of water Unaffected by pH value of water Increased at higher pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Residual chlorine in water is determined by None of these Both (A) and (B) Starch iodide method Orthotolidine method None of these Both (A) and (B) Starch iodide method Orthotolidine method ANSWER DOWNLOAD EXAMIANS APP
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