Environmental Engineering in CE Which of the following is the most major constituents of air pollutants? Hydrogen sulphide Carbon monoxide Oxides of nitrogen Oxides of sulphur Hydrogen sulphide Carbon monoxide Oxides of nitrogen Oxides of sulphur ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is Impervious to ultra-violet rays A primary pollutant Both B & C A secondary pollutant Impervious to ultra-violet rays A primary pollutant Both B & C A secondary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Operating principle of cyclone separator is based on the action of __________ dust particles. Diffusion of Centrifugal force on Electrostatic force on Gravitational force on Diffusion of Centrifugal force on Electrostatic force on Gravitational force on ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Acetaldehyde Toluene Carbon disulphide Carbon dioxide Acetaldehyde Toluene Carbon disulphide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 300 ppm 100 ppm 50 ppm 700 ppm 300 ppm 100 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Silica gel Bog iron (iron oxide) Active carbon Pulverised limestone Silica gel Bog iron (iron oxide) Active carbon Pulverised limestone ANSWER DOWNLOAD EXAMIANS APP
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