Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 20 mm/hr 4 mm/hr 40 mm/hr 10 mm/hr 20 mm/hr 4 mm/hr 40 mm/hr 10 mm/hr ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of sewer which is suitable for both combined and separate system is Semi-elliptical sewer Circular sewer Horseshoe type sewer Egg shaped sewer Semi-elliptical sewer Circular sewer Horseshoe type sewer Egg shaped sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Period of cleaning of slow sand filters is about 24 - 48 hours 2 - 3 months 10 - 12 days 1 - 2 year 24 - 48 hours 2 - 3 months 10 - 12 days 1 - 2 year ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The self cleansing velocity for all sewers in India is usually 1.5 m/sec to 2.0 m/sec 3.0 m/sec to 3.5 m/sec 1.0 m/sec to 1.2 m/sec Less than 1.0 m/sec 1.5 m/sec to 2.0 m/sec 3.0 m/sec to 3.5 m/sec 1.0 m/sec to 1.2 m/sec Less than 1.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Oxidation Reduction Dehydration Alkalinization Oxidation Reduction Dehydration Alkalinization ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Presence of water Absence of oxygen only Presence of oxygen only Presence as well as in absence of oxygen Presence of water Absence of oxygen only Presence of oxygen only Presence as well as in absence of oxygen ANSWER DOWNLOAD EXAMIANS APP
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