Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 750 1500 230 20 750 1500 230 20 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 Silica gel Bog iron (iron oxide) Pulverised limestone Active carbon Silica gel Bog iron (iron oxide) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant. Calcium Sulphur Phosphorous Fluorine Calcium Sulphur Phosphorous Fluorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smoke is produced due to All of these Poor quality of fuel and improper mixing of fuel & combustion air Insufficient supply of combustion air and insufficient time for combustion Poor design & overloading of furnace All of these Poor quality of fuel and improper mixing of fuel & combustion air Insufficient supply of combustion air and insufficient time for combustion Poor design & overloading of furnace ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerosols present in atmospheric air may be Negatively charged Positively charged Combination of all A, B & C Neutral Negatively charged Positively charged Combination of all A, B & C Neutral ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 105 145 125 85 105 145 125 85 ANSWER DOWNLOAD EXAMIANS APP
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