Environmental Engineering 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 filters The correct answer is (ii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (ii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Aerated lagoons Oxidation ditch Trickling filters Oxidation pond Aerated lagoons Oxidation ditch Trickling filters Oxidation pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the average daily consumption of a city is 100,000 m³, the maximum daily consumption on peak hourly demand will be 270000 m³ 180000 m³ 150000 m³ 100000 m³ 270000 m³ 180000 m³ 150000 m³ 100000 m³ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewerage system is designed for Maximum and minimum flow Minimum flow only Average flow only Maximum flow only Maximum and minimum flow Minimum flow only Average flow only Maximum flow only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Dissolved oxygen in streams is Same throughout the day Minimum at noon Maximum at noon Maximum at midnight Same throughout the day Minimum at noon Maximum at noon Maximum at midnight ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Sodium carbonate Calcium hydroxide Magnesium carbonate Calcium carbonate Sodium carbonate Calcium hydroxide Magnesium carbonate Calcium carbonate ANSWER DOWNLOAD EXAMIANS APP
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