Environmental Engineering in CE Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur? None of these Stratosphere Thermosphere Troposphere None of these Stratosphere Thermosphere Troposphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Color test of water is done with an instrument called Colorimeter Tintometer Electro-chemical cell Turbidimeter Colorimeter Tintometer Electro-chemical cell Turbidimeter 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 Photosynthetic action of algae Both A & B Neither A nor B Natural aeration of water stream Photosynthetic action of algae Both A & B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 105 120 90 60 105 120 90 60 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. 120 60 20 90 120 60 20 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smog is not formed due to the presence of __________ in the atmosphere. NOx SO₂ CO₂ Any of these NOx SO₂ CO₂ Any of these ANSWER DOWNLOAD EXAMIANS APP