Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 100 1000 2000 5 100 1000 2000 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Solid content in most of the domestic sewage is about __________ percent. 5 0.1 10 0.001 5 0.1 10 0.001 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The earth's atmosphere is an envelope of gases present upto a height of about __________ kms. 200 2000 1000 10 200 2000 1000 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? Biological oxidation pond Chemical coagulation Lagooning Activated carbon adsorption Biological oxidation pond Chemical coagulation Lagooning Activated carbon adsorption ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a weightless pollutant? SPM Thermal pollution Noise pollution Radioactive rays SPM Thermal pollution Noise pollution Radioactive rays ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 1 3 7 20 1 3 7 20 ANSWER DOWNLOAD EXAMIANS APP
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