Environmental Engineering in CE 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 filtersThe correct answer is (ii) and (iii) (i) and (iv) (ii) and (iv) (i) and (ii) (ii) and (iii) (i) and (iv) (ii) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In the context of the chemical process industries, the term BOD is normally associated with the Characterisation of solid wastes Organic concentration in gaseous effluents Characterisation of boiler feed water Characterisation of liquid effluents Characterisation of solid wastes Organic concentration in gaseous effluents Characterisation of boiler feed water Characterisation of liquid effluents ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels. 35 95 75 105 35 95 75 105 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 750 20 230 1500 750 20 230 1500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of soluble organics in polluted water causes Depletion of oxygen Explosion hazards Undesirable plants growth Fire hazards Depletion of oxygen Explosion hazards Undesirable plants growth Fire hazards ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is A primary pollutant Both B & C A secondary pollutant Impervious to ultra-violet rays A primary pollutant Both B & C A secondary pollutant Impervious to ultra-violet rays ANSWER DOWNLOAD EXAMIANS APP
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