Environmental Engineering in CE The upper layer of atmosphere is called the Stratosphere Troposphere Ionosphere None of these Stratosphere Troposphere Ionosphere None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Alkalinity Iron & zinc Acidity Hardness Alkalinity Iron & zinc Acidity Hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c. 82 7 19 1 82 7 19 1 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 clarifiers In vacuum filter By chemical coagulation In sedimentation tanks equipped with mechanical scrapper In clarifiers In vacuum filter By chemical coagulation In sedimentation tanks equipped with mechanical scrapper ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank. Filtration Both B and C Sedimentation Digestion Filtration Both B and C Sedimentation Digestion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate? CO CFC (chloro fluoro carbons) NOx SO₂ CO CFC (chloro fluoro carbons) NOx SO₂ ANSWER DOWNLOAD EXAMIANS APP
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