Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Bromine Iodine Iron Zinc Bromine Iodine Iron Zinc ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 300 ppm 50 ppm 100 ppm 700 ppm 300 ppm 50 ppm 100 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen sulphides Hydrogen flouride Hydrocarbons Nitrogen dioxide Hydrogen sulphides Hydrogen flouride Hydrocarbons Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polyvinyl chloride containers are not suitable for storing Woolen clothes None of these Metallic powder Foodstuffs Woolen clothes None of these Metallic powder Foodstuffs ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called Skimming mill Septic tank Cesspool Lagoon Skimming mill Septic tank Cesspool Lagoon ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? Refrigerators High voltage electrical equipments Xerox machines Dermatological photo-therapy equipments Refrigerators High voltage electrical equipments Xerox machines Dermatological photo-therapy equipments ANSWER DOWNLOAD EXAMIANS APP
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