Environmental Engineering in CE 'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the Automobiles exhaust Photochemical reaction in polluted atmosphere Industrial chimney exhaust Burning of domestic fuel Automobiles exhaust Photochemical reaction in polluted atmosphere Industrial chimney exhaust Burning of domestic fuel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the Green house effect Both B and C Global warming Catalytic conversion Green house effect Both B and C Global warming Catalytic conversion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is Impervious to ultra-violet rays A secondary pollutant A primary pollutant Both B & C Impervious to ultra-violet rays A secondary pollutant A primary pollutant Both B & C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 100-1000 100-200 10-100 100-1000 100-200 10-100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. Anaerobic decomposition Aerobic decomposition None of these Separation Anaerobic decomposition Aerobic decomposition None of these Separation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Pulverised limestone Active carbon Bog iron (iron oxide) Silica gel Pulverised limestone Active carbon Bog iron (iron oxide) Silica gel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS