Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 10000 to 100000 1000 to 2000 3000 to 6000 6000 to 9000 10000 to 100000 1000 to 2000 3000 to 6000 6000 to 9000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oil and grease present in an emulsified state in waste water discharged from industries can be removed by Settling out using chemical reagents Skimming off Biological oxidation Chlorination Settling out using chemical reagents Skimming off Biological oxidation Chlorination 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 Bronchitis Cancer Bone disease Skin disorder Bronchitis Cancer Bone disease ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to chemicals having carcinogenic properties cause Asphyxiation (suffocation) Cancer Asthma Dermatitis (skin disorder) Asphyxiation (suffocation) Cancer Asthma Dermatitis (skin disorder) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Average human body contains about __________ percent water by weight. 20 70 85 40 20 70 85 40 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Hardness Acidity Alkalinity Iron & zinc Hardness Acidity Alkalinity Iron & zinc ANSWER DOWNLOAD EXAMIANS APP
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