Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 185 135 105 160 185 135 105 160 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following industries discharge mercury as a pollutant? Tanneries Beverage plant Phosphoric acid plant Chloro-alkali industry Tanneries Beverage plant Phosphoric acid plant Chloro-alkali industry ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? None of these Forest fire Deforestation Volcanic eruption None of these Forest fire Deforestation Volcanic eruption ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan With greater number of blades Neither A nor B Both A & B Of increased diameter With greater number of blades Neither A nor B Both A & B Of increased diameter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? Hydrocarbons NOx CO SO₂ Hydrocarbons NOx CO SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most lethal water pollutant? Phenol and cynide Alkalis Chlorine Suspended solids Phenol and cynide Alkalis Chlorine Suspended solids ANSWER DOWNLOAD EXAMIANS APP
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