Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 105 120 60 90 105 120 60 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a 'particulate'? Photochemical smog & soot None of these Dust & mists Smoke & fumes Photochemical smog & soot None of these Dust & mists Smoke & fumes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hardy cross method of analysis of distribution system(i) Involves successive trials(ii) Takes economic aspects into account(iii) Is time consuming (i) and (ii) (i) and (iii) All are correct Only (i) (i) and (ii) (i) and (iii) All are correct Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Infective bacteria in water is killed by the __________ process. Sterilisation Disinfection None of these Aeration Sterilisation Disinfection None of these Aeration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Petrol vapor Hydrogen Carbon monoxide Acetylene Petrol vapor Hydrogen Carbon monoxide Acetylene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank. Digestion Filtration Sedimentation Both B and C Digestion Filtration Sedimentation Both B and C ANSWER DOWNLOAD EXAMIANS APP
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