Environmental Engineering in CE Presence of iron and manganese in water causes Reduction in its dissolved oxygen content Temporary hardness None of these Discoloration of bathroom fixtures Reduction in its dissolved oxygen content Temporary hardness None of these Discoloration of bathroom fixtures 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? Inorganic pollutants Natural organic products None of these Radioactive substances Inorganic pollutants Natural organic products None of these Radioactive substances ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyl and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) Causes increase in sea level Acts as a green house gas thereby raising earth's temperature Causes asphyxia Inhances the green house effect Causes increase in sea level Acts as a green house gas thereby raising earth's temperature Causes asphyxia Inhances the green house effect ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it. Ozone None of these Carbon dioxide Hydrogen Ozone None of these Carbon dioxide Hydrogen 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 None of these Left as such without any treatment Neutralised by alkali treatment Diluted with fresh water to reduce its acidity None of these Left as such without any treatment Neutralised by alkali treatment ANSWER DOWNLOAD EXAMIANS APP
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