Environmental Engineering in CE Noise level in a quiet private business office is about __________ decibels. 25 50 85 70 25 50 85 70 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 7.3 13.4 1.8 6.2 7.3 13.4 1.8 6.2 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 Left as such without any treatment None of these Diluted with fresh water to reduce its acidity Neutralised by alkali treatment Left as such without any treatment None of these Diluted with fresh water to reduce its acidity Neutralised by alkali treatment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a weightless pollutant? SPM Thermal pollution Radioactive rays Noise pollution SPM Thermal pollution Radioactive rays Noise pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Skimming tank Lagoon Oxidation Imhoff tank Skimming tank Lagoon Oxidation Imhoff tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries? None of these Natural organic products Inorganic pollutants Radioactive substances None of these Natural organic products Inorganic pollutants Radioactive substances ANSWER DOWNLOAD EXAMIANS APP
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