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) (ii) and (iii) (i) and (ii) (i) and (iv) (ii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following values of pH represents a stronger acid? 3 2 4 5 3 2 4 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Hardness in water Residual chlorine in water Turbidity in water Dissolved oxygen in water Hardness in water Residual chlorine in water Turbidity in water Dissolved oxygen in water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Period of cleaning of slow sand filters is about 1 - 2 year 2 - 3 months 10 - 12 days 24 - 48 hours 1 - 2 year 2 - 3 months 10 - 12 days 24 - 48 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The treatment of water with bleaching powder is known as Pre-chlorination Super chlorination Hypo-chlorination De-chlorination Pre-chlorination Super chlorination Hypo-chlorination De-chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering A pipe which is installed in the house drainage to preserve the water seal of traps is called Waste pipe Vent pipe Anti-siphonage pipe Soil pipe Waste pipe Vent pipe Anti-siphonage pipe Soil pipe ANSWER DOWNLOAD EXAMIANS APP
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