Environmental Engineering in CE Which of the following is the most major constituents of air pollutants? Hydrogen sulphide Oxides of nitrogen Oxides of sulphur Carbon monoxide Hydrogen sulphide Oxides of nitrogen Oxides of sulphur Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 5 1000 2000 100 5 1000 2000 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect? H₂ SO₃ CO₂ N₂ H₂ SO₃ CO₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
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 15-20 25-30 43961 43832 15-20 25-30 43961 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) B 8B 2B 4B B 8B 2B 4B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. 50 25 120 80 50 25 120 80 ANSWER DOWNLOAD EXAMIANS APP
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