Environmental Engineering in CE The disinfection efficiency of chlorine increases by(i) Decreasing the time of contact(ii) Decreasing the temperature of water(iii) Increasing the temperature of water Both (i) and (ii) Only (i) Both (i) and (iii) Only (iii) Both (i) and (ii) Only (i) Both (i) and (iii) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of mercury in potable (drinking) water is about __________ ppm. 0.1 1 0.001 5 0.1 1 0.001 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In large thermal power stations very fine particulates present in flue gas are removed by Dust catcher Wet scrubber Bag filter Electrostatic precipitators Dust catcher Wet scrubber Bag filter Electrostatic precipitators ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Sulphuric acid plant Nitric acid plant Petroleum refinery Thermal power plant Sulphuric acid plant Nitric acid plant Petroleum refinery Thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Color Hardness Dissolved gases Turbidity Color Hardness Dissolved gases Turbidity ANSWER DOWNLOAD EXAMIANS APP
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. 10⁹ 10² 10⁵ 10¹⁵ 10⁹ 10² 10⁵ 10¹⁵ ANSWER DOWNLOAD EXAMIANS APP
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