Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 160 185 105 135 160 185 105 135 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present in the polluted water is removed by Chemical coagulation Simple filtration Oxidation followed by settling & filtration Chlorination only Chemical coagulation Simple filtration Oxidation followed by settling & filtration Chlorination only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Grit chamber Skimming tank Detritus tank Trickling filter Grit chamber Skimming tank Detritus tank Trickling filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Lagging of noisy duct None of these Accoustical absorbent Mufflers (silencers) Lagging of noisy duct None of these Accoustical absorbent Mufflers (silencers) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Soluble silica present in boiler feed water can be removed by Filtration Preheating it Coagulation Anion exchanger Filtration Preheating it Coagulation Anion exchanger ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of soluble organics in polluted water causes Undesirable plants growth Depletion of oxygen Fire hazards Explosion hazards Undesirable plants growth Depletion of oxygen Fire hazards Explosion hazards ANSWER DOWNLOAD EXAMIANS APP
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