Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Boundary layer separation Pipe vibrations Cavitation Fluctuation in liquid flow Boundary layer separation Pipe vibrations Cavitation Fluctuation in liquid flow ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh sewage is __________ in nature. Acidic Neutral Alkaline Highly acidic Acidic Neutral Alkaline Highly acidic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant used for the removal of SO₂ from gas/air? Silica gel Active carbon Limestone powder or alkalised alumina Bog iron Silica gel Active carbon Limestone powder or alkalised alumina Bog iron ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Bi-carbonates Iron & manganese Carbonates Arsenic Bi-carbonates Iron & manganese Carbonates Arsenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur? Thermosphere Stratosphere Troposphere None of these Thermosphere Stratosphere Troposphere None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as Peroxy acetyl nitrate (PAN) or methyl nitrile Photochemical smog Benzopyrene Poly acrylonitrile Peroxy acetyl nitrate (PAN) or methyl nitrile Photochemical smog Benzopyrene Poly acrylonitrile ANSWER DOWNLOAD EXAMIANS APP
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