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). 7 1 20 3 7 1 20 3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels. 105 35 95 75 105 35 95 75 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagooning process is mainly a means of the Biological treatment of wastes Sludge disposal Reduction of excessive flow in sewers None of these Biological treatment of wastes Sludge disposal Reduction of excessive flow in sewers None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Corrosion Explosion Non biodegradable foam Undesirable plant growth Corrosion Explosion Non biodegradable foam Undesirable plant growth ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In large thermal power stations very fine particulates present in flue gas are removed by Dust catcher Electrostatic precipitators Bag filter Wet scrubber Dust catcher Electrostatic precipitators Bag filter Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Accoustical absorbent Lagging of noisy duct None of these Mufflers (silencers) Accoustical absorbent Lagging of noisy duct None of these Mufflers (silencers) ANSWER DOWNLOAD EXAMIANS APP
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