Environmental Engineering in CE COD of raw municipal sewage may be in the range of about __________ mg/litre. 5-10 1500-2500 1-2 90-120 5-10 1500-2500 1-2 90-120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is Diluted with fresh water to reduce its acidity Left as such without any treatment Neutralised by alkali treatment None of these Diluted with fresh water to reduce its acidity Left as such without any treatment Neutralised by alkali treatment None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Boundary layer separation Pipe vibrations Fluctuation in liquid flow Cavitation Boundary layer separation Pipe vibrations Fluctuation in liquid flow Cavitation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ethanolamine is an absorbant used for the removal of __________ from air/gas. SO₂ Both B & C HF H₂S SO₂ Both B & C HF H₂S ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carcinogenic air pollutants cause Cancer Asphyxiation (suffocation) Bone decay Anemia Cancer Asphyxiation (suffocation) Bone decay Anemia ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ can not control the noise pollution. Vibration damping Green house gases Use of silencers Tree plantation Vibration damping Green house gases Use of silencers Tree plantation ANSWER DOWNLOAD EXAMIANS APP
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