Environmental Engineering in CE The main industrial source of emission of hydrogen sulphide air pollutant is Coal based thermal power plants Pulp and paper plant Metallurgical roasting & smelting plant Petroleum refineries Coal based thermal power plants Pulp and paper plant Metallurgical roasting & smelting plant Petroleum refineries ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream? Sedimentation tank Circular clarifier Chemical coagulation Mechanical flocculation Sedimentation tank Circular clarifier Chemical coagulation Mechanical flocculation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is removed from water by lime-soda process. Foul smell and taste Temporary hardness Iron and manganese Permanent hardness Foul smell and taste Temporary hardness Iron and manganese Permanent hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the Stratosphere Troposphere None of these Ionosphere Stratosphere Troposphere None of these Ionosphere 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 Atmospheric effect Global warming Ionosphere Green house Atmospheric effect Global warming Ionosphere Green house ANSWER DOWNLOAD EXAMIANS APP
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