Environmental Engineering Period of cleaning of slow sand filters is about 24 - 48 hours 10 - 12 days 1 - 2 year 2 - 3 months 24 - 48 hours 10 - 12 days 1 - 2 year 2 - 3 months ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum and maximum diameters of sewers shall preferably be 15 cm and 100 cm 15 cm and 300 cm 60 cm and 300 cm 30 cm and 450 cm 15 cm and 100 cm 15 cm and 300 cm 60 cm and 300 cm 30 cm and 450 cm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable method for disinfection of swimming pool water is Chlorination Ultra violet rays treatment Lime treatment By using potassium permanganate Chlorination Ultra violet rays treatment Lime treatment By using potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Residual chlorine in water is determined by Starch iodide method Both (A) and (B) None of these Orthotolidine method Starch iodide method Both (A) and (B) None of these Orthotolidine method ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Magnesium carbonate Calcium carbonate Sodium carbonate Calcium hydroxide Magnesium carbonate Calcium carbonate Sodium carbonate Calcium hydroxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used To increase the filtration rapid sand filters capacity of To increase the filtration slow sand filters capacity of For isolated buildings like pools, hotels etc swimming All of these To increase the filtration rapid sand filters capacity of To increase the filtration slow sand filters capacity of For isolated buildings like pools, hotels etc swimming All of these ANSWER DOWNLOAD EXAMIANS APP
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