Environmental Engineering in CE World's worst radioactive pollution was caused by nuclear reactor disaster which occured in Arizona (U.S.A.) Pensylvania (U.S.A.) Chernobyl (undivided U.S.S.R.) Moscow (U.S.S.R.) Arizona (U.S.A.) Pensylvania (U.S.A.) Chernobyl (undivided U.S.S.R.) Moscow (U.S.S.R.) 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 SO₂ CO₂ CFC (chloro fluoro carbon) Hydrocarbons SO₂ CO₂ CFC (chloro fluoro carbon) Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 20 120 60 90 20 120 60 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of NO₂ & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO₂ causes Skin disorder Cancer Bronchitis Bone disease Skin disorder Cancer Bronchitis Bone disease ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In clarifiers In vacuum filter In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In clarifiers In vacuum filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The lowest layer of atmosphere is known as the Ionosphere None of these Troposphere Stratosphere Ionosphere None of these Troposphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS