Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Oxidation followed by settling & filtration Ion exchange process Lime soda process or manganese zeolite process Chlorination Oxidation followed by settling & filtration Ion exchange process Lime soda process or manganese zeolite process Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the Green house Global warming Ionosphere Atmospheric effect Green house Global warming Ionosphere Atmospheric effect ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank Only (iii) (i) and (iii) (i) and (ii) Only (i) Only (iii) (i) and (iii) (i) and (ii) Only (i) 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 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 Diluted with fresh water to reduce its acidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10¹⁵ 10⁵ 10² 10⁹ 10¹⁵ 10⁵ 10² 10⁹ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Ferric chloride Alum (aluminium sulphate) Lime Sodium aluminate Ferric chloride Alum (aluminium sulphate) Lime Sodium aluminate ANSWER DOWNLOAD EXAMIANS APP
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