Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10¹⁵ 10⁵ 10⁹ 10² 10¹⁵ 10⁵ 10⁹ 10² ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ plant emits large amount of SO₂ as an air pollutant. Sulphuric acid Chloralkali Nitric acid Iron & steel Sulphuric acid Chloralkali Nitric acid Iron & steel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm. 1 5 0.1 25 1 5 0.1 25 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 5 to 10 2 to 3 0.001 to 0.01 02 to 0.3 5 to 10 2 to 3 0.001 to 0.01 02 to 0.3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels. 140 170 120 200 140 170 120 200 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Turbidity of water is an indication of the presence of Dissolved solids Dissolved gases Suspended inorganic matter Floating solids Dissolved solids Dissolved gases Suspended inorganic matter Floating solids ANSWER DOWNLOAD EXAMIANS APP
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