Environmental Engineering Which of the following sewers is preferred for combined system of sewage? Egg shaped sewer Rectangular sewer None of these Circular sewer Egg shaped sewer Rectangular sewer None of these Circular sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Select the correct relationship between porosity (N), specific yield (y) and specific retention (R) R = N + y N = y + R y = N + R R > (N + y) R = N + y N = y + R y = N + R R > (N + y) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection of water results in Removal of hardness Killing of disease bacteria Removal of turbidity Complete sterilisation Removal of hardness Killing of disease bacteria Removal of turbidity Complete sterilisation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The relative stability of a sewage sample, whose dissolved oxygen is same as the total oxygen required to satisfy BOD, is 100 Infinite 1 Zero 100 Infinite 1 Zero ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of Alteration of pressure filters is Equal to that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Less than that of slow sand filters Greater than that of rapid sand filters Equal to that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Less than that of slow sand filters Greater than that of rapid sand filters 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) (i) and (iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP