Environmental Engineering in CE Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes Tuberculosis All of these Shortness of breath Asphyxiation (suffocation) Tuberculosis All of these Shortness of breath Asphyxiation (suffocation) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is Impervious to ultra-violet rays A secondary pollutant Both B & C A primary pollutant Impervious to ultra-violet rays A secondary pollutant Both B & C A primary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 750 800 90 10 750 800 90 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm. 100 1000 25 0.1 100 1000 25 0.1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Infective bacteria in water is killed by the __________ process. Sterilisation Aeration None of these Disinfection Sterilisation Aeration None of these Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise level in a chemical plant can be controlled by the Path control of noise All of these Protection of operating personnel Suppression of noise at the source itself Path control of noise All of these Protection of operating personnel Suppression of noise at the source itself ANSWER DOWNLOAD EXAMIANS APP
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