Page No. 56
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Presence of bacteria in potable (drinking) water causes_________________?
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TLV of ozone (O3) and phosgene (COCl2) in air is _______________ ppm?
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Radioactive substances present in the polluted water stream can be removed by_________________?
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H2S present in gaseous stream can be removed by adsorption on _____________________?
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Maximum permissible turbidity in potable water is _____________ ppm?
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Higher concentration of CO2 in atmosphere_____________________?
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The main type of sludge gas evolved during sewage treatment in Imhoff tank is___________________?
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_____________ plant emits large amount of SO2 as an air pollutant?
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