Environmental Engineering in CE The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel. 20 10 5 1 20 10 5 1 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. 90 60 120 20 90 60 120 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. 10000 500 5 1000 10000 500 5 1000 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 Bone disease Bronchitis Skin disorder Cancer Bone disease Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 20 3 1 7 20 3 1 7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. Hydrogen sulphide Asbestos Mercury Cadmium Hydrogen sulphide Asbestos Mercury Cadmium ANSWER DOWNLOAD EXAMIANS APP
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