Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 145 100 80 125 145 100 80 125 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Nitric acid plant Petroleum refinery Sulphuric acid plant Thermal power plant Nitric acid plant Petroleum refinery Sulphuric acid plant Thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Reingleman chart No. 2 corresponds to __________ percent black smoke. 10 80 40 20 10 80 40 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the Ionosphere None of these Troposphere Stratosphere Ionosphere None of these Troposphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Hertz Decibel None of these Roentgen Hertz Decibel None of these Roentgen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ionisation potential employed in the industrial electrostatic precipitator is of the order of 230 V AC 30 to 70 kV AC 30 to 70 kV DC 230 V DC 230 V AC 30 to 70 kV AC 30 to 70 kV DC 230 V DC ANSWER DOWNLOAD EXAMIANS APP
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