Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 100 to 150 1400 to 1500 500 to 600 50 to 60 100 to 150 1400 to 1500 500 to 600 50 to 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to rapid sand filters, slow sand filters give (i) Slower filtration rate (ii) Higher filtration rate (iii) Lesser efficiency in removal of bacteria (iv) Higher efficiency in removal of bacteria The correct answer is (ii) and (iii) (ii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (ii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Period of cleaning of slow sand filters is about 2 - 3 months 24 - 48 hours 1 - 2 year 10 - 12 days 2 - 3 months 24 - 48 hours 1 - 2 year 10 - 12 days ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to shallow wells, deep wells have More discharge Less depth Less discharge More depth More discharge Less depth Less discharge More depth ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The ratio of 5 day BOD to ultimate BOD is about 43833 43864 1 43894 43833 43864 1 43894 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system? Circle method Electrical analysis method Equivalent pipe method Hardy cross method Circle method Electrical analysis method Equivalent pipe method Hardy cross method ANSWER DOWNLOAD EXAMIANS APP
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