Environmental Engineering in CE Which of the following is the most lethal water pollutant? Chlorine Suspended solids Alkalis Phenol and cynide Chlorine Suspended solids Alkalis Phenol and cynide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of soluble organics in polluted water causes Fire hazards Depletion of oxygen Undesirable plants growth Explosion hazards Fire hazards Depletion of oxygen Undesirable plants growth Explosion hazards ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is removed from water by lime-soda process. Permanent hardness Iron and manganese Foul smell and taste Temporary hardness Permanent hardness Iron and manganese Foul smell and taste Temporary hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank. Digestion Sedimentation Filtration Both B and C Digestion Sedimentation Filtration Both B and C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Dissolved oxygen Turbidity Suspended silica Caustic embrittlement Dissolved oxygen Turbidity Suspended silica Caustic embrittlement ANSWER DOWNLOAD EXAMIANS APP
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 (i) and (iv) (i) and (ii) (ii) and (iii) (ii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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