Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Active carbon Pulverised limestone Bog iron (iron oxide) Silica gel Active carbon Pulverised limestone Bog iron (iron oxide) Silica gel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Arsenic Aluminium Lead Mercury Arsenic Aluminium Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Alum (aluminium sulphate) Lime Ferric chloride Sodium aluminate Alum (aluminium sulphate) Lime Ferric chloride Sodium aluminate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Sulphides Carbonates Chlorides Bi-carbonates Sulphides Carbonates Chlorides Bi-carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using None of these Accoustical absorbent Mufflers (silencers) Lagging of noisy duct None of these Accoustical absorbent Mufflers (silencers) Lagging of noisy duct ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Cavitation Fluctuation in liquid flow Pipe vibrations Boundary layer separation Cavitation Fluctuation in liquid flow Pipe vibrations Boundary layer separation ANSWER DOWNLOAD EXAMIANS APP
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