Environmental Engineering in CE High noise level in a chemical plant can be controlled by the Protection of operating personnel Path control of noise Suppression of noise at the source itself All of these Protection of operating personnel Path control of noise Suppression of noise at the source itself All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 2000-3000 1-2 150-300 5-10 2000-3000 1-2 150-300 5-10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of Hydrocarbons CO₂ CFC (chloro fluoro carbon) SO₂ Hydrocarbons CO₂ CFC (chloro fluoro carbon) SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Aerobic oxidation Using the activities of bacteria and other micro organisms Both A & B Neither A nor B Aerobic oxidation Using the activities of bacteria and other micro organisms Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of aldrin in public water supply system is about __________ μg/litre. 0.5 357 17 1097 0.5 357 17 1097 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 25-30 43961 43832 15-20 25-30 43961 43832 15-20 ANSWER DOWNLOAD EXAMIANS APP
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