Environmental Engineering The minimum and maximum diameters of sewers shall preferably be 15 cm and 300 cm 15 cm and 100 cm 60 cm and 300 cm 30 cm and 450 cm 15 cm and 300 cm 15 cm and 100 cm 60 cm and 300 cm 30 cm and 450 cm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 5 - 10 years 15 - 28 years 15 - 20 years 28 - 30 years 5 - 10 years 15 - 28 years 15 - 20 years 28 - 30 years ANSWER DOWNLOAD EXAMIANS APP
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 (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 When there is no recirculation of sewage, then recirculation factor is Infinity None of these 1 Infinity None of these 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is Directly proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD remaining Inversely proportional to BOD satisfied Directly proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD remaining Inversely proportional to BOD satisfied ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about 59 75 100 50 59 75 100 50 ANSWER DOWNLOAD EXAMIANS APP
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