Environmental Engineering In lime-soda process Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum permissible limit for fluoride in drinking water is 5 mg/liter 10 mg/liter 0.1 mg/liter 1.5 mg/liter 5 mg/liter 10 mg/liter 0.1 mg/liter 1.5 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of Disposing of sludge Reducing the excessive flow in sewers Increasing flow of sewage through imhoff tanks Increasing the capacity of storage reservoirs Disposing of sludge Reducing the excessive flow in sewers Increasing flow of sewage through imhoff tanks Increasing the capacity of storage reservoirs ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is (i) Presumptive coli-form test (ii) Confirmed coli-form test (iii) Completed coli-form test Both (i) and (iii) Only (i) All (i), (ii) and (iii) Both (i) and (ii) Both (i) and (iii) Only (i) All (i), (ii) and (iii) Both (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are designed for Average flow only Minimum flow only Maximum and minimum flow Maximum flow only Average flow only Minimum flow only Maximum and minimum flow Maximum flow only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 30 to 35 10 to 15 40 to 50 20 to 25 30 to 35 10 to 15 40 to 50 20 to 25 ANSWER DOWNLOAD EXAMIANS APP
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