Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 90 800 10 750 90 800 10 750 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to SO₂ containing chimney gases results in the Reduction in strength of leather & cloth All of these Increased drying & hardening time of paints Acceleration of corrosion rates of metals Reduction in strength of leather & cloth All of these Increased drying & hardening time of paints Acceleration of corrosion rates of metals ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Pneumoconiosis None of these Bronchitis Silicosis Pneumoconiosis None of these Bronchitis Silicosis 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 Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Neither A nor B Natural aeration of water stream Both A & B Photosynthetic action of algae Neither A nor B Natural aeration of water stream Both A & B Photosynthetic action of algae ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The lowest layer of atmosphere is known as the Troposphere Ionosphere Stratosphere None of these Troposphere Ionosphere Stratosphere None of these ANSWER DOWNLOAD EXAMIANS APP
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