Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using None of these Mufflers (silencers) Accoustical absorbent Lagging of noisy duct None of these Mufflers (silencers) Accoustical absorbent Lagging of noisy duct ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. None of these Potassium cyanide Ortho-xylene Coal ash None of these Potassium cyanide Ortho-xylene Coal ash ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Nitrogen oxides (NOx) is not produced in the __________ industry. Detergent Nitrogenous fertiliser Any of these Nitric acid making Detergent Nitrogenous fertiliser Any of these Nitric acid making ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis is caused due to the presence of excessive amount of __________ in drinking water. Mercury Arsenic Lead Fluoride Mercury Arsenic Lead Fluoride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. 25 120 80 50 25 120 80 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main industrial source of emission of hydrogen sulphide air pollutant is Petroleum refineries Pulp and paper plant Coal based thermal power plants Metallurgical roasting & smelting plant Petroleum refineries Pulp and paper plant Coal based thermal power plants Metallurgical roasting & smelting plant ANSWER DOWNLOAD EXAMIANS APP
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