Environmental Engineering The minimum and maximum diameters of sewers shall preferably be 60 cm and 300 cm 15 cm and 300 cm 15 cm and 100 cm 30 cm and 450 cm 60 cm and 300 cm 15 cm and 300 cm 15 cm and 100 cm 30 cm and 450 cm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be Separate system Partially separate system Combined system Partially combined system Separate system Partially separate system Combined system Partially combined system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are designed for Maximum flow only Minimum flow only Average flow only Maximum and minimum flow Maximum flow only Minimum flow only Average flow only Maximum and minimum flow 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 (iv) (i) and (ii) (ii) and (iii) (ii) and (iv) (i) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally Less and less Less and more More and less More and more Less and less Less and more More and less More and more ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most commonly used sewer under culverts is Semi-elliptical sewer Circular brick sewer Horseshoe type sewer Circular cast iron sewer Semi-elliptical sewer Circular brick sewer Horseshoe type sewer Circular cast iron sewer ANSWER DOWNLOAD EXAMIANS APP
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