Environmental Engineering The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is Combined system Partially combined system Partially separate system Separate system Combined system Partially combined system Partially separate system Separate system 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 (i) and (ii) (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 0.2 to 0.4 0.4 to 1.0 5 to 7 2 to 4 0.2 to 0.4 0.4 to 1.0 5 to 7 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 1 ppm 40 ppm 4 ppm 10 ppm 1 ppm 40 ppm 4 ppm 10 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following retards the self purification of stream? Satisfying oxygen demand None of these Higher temperature Sunlight Satisfying oxygen demand None of these Higher temperature Sunlight 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
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