Environmental Engineering in CE Water filtration rate in a slow sand filter ranges from __________ litres/m²/hr. 10 to 20 4000 to 5000 100 to 200 1500 to 2500 10 to 20 4000 to 5000 100 to 200 1500 to 2500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Cleaning is done by(i) Scraping and removal in filters slow sand(ii) Back washing in slow sand filters(iii) Scraping and removal in filters rapid sand(iv) Back washing in rapid sand filtersThe correct answer is (i) and (iv) (ii) and (iii) (i) and (ii) (ii) and (iv) (i) and (iv) (ii) and (iii) (i) and (ii) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) 2B 8B 4B B 2B 8B 4B B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Dissolved oxygen Turbidity Caustic embrittlement Suspended silica Dissolved oxygen Turbidity Caustic embrittlement Suspended silica ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called None of these Bronchitis Silicosis Pneumoconiosis None of these Bronchitis Silicosis Pneumoconiosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm. 1 25 0.1 5 1 25 0.1 5 ANSWER DOWNLOAD EXAMIANS APP
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