Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 43832 43961 15-20 25-30 43832 43961 15-20 25-30 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Pneumoconiosis Bronchitis Silicosis None of these Pneumoconiosis Bronchitis Silicosis None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm. 1000 2000 500 5 1000 2000 500 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Average human body contains about __________ percent water by weight. 40 70 20 85 40 70 20 85 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Natural aeration of water stream Photosynthetic action of algae Both A & B Neither A nor B Natural aeration of water stream Photosynthetic action of algae Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? None of these Volcanic eruption Forest fire Deforestation None of these Volcanic eruption Forest fire Deforestation ANSWER DOWNLOAD EXAMIANS APP
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