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 Septic tanks are used for the __________ of the deposited solids. Aerobic decomposition Anaerobic decomposition None of these Separation Aerobic decomposition Anaerobic decomposition None of these Separation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called Smoke Dust Grit Powder Smoke Dust Grit Powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Thermal power plant Sulphuric acid plant Nitric acid plant Petroleum refinery Thermal power plant Sulphuric acid plant Nitric acid plant Petroleum refinery ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foul odour and bad taste of water is removed by treating with Activated carbon Alum Copper sulphate Bleaching powder Activated carbon Alum Copper sulphate Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 135 160 185 105 135 160 185 105 ANSWER DOWNLOAD EXAMIANS APP
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