Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Toluene Carbon disulphide Carbon dioxide Acetaldehyde Toluene Carbon disulphide Carbon dioxide Acetaldehyde ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Scale formation in boiler is controlled by Preheating of feed water Reduction in hardness, silica & alumina in feed water Eliminating H₂S in feed water Keeping the pH value of feed water just below 7 Preheating of feed water Reduction in hardness, silica & alumina in feed water Eliminating H₂S in feed water Keeping the pH value of feed water just below 7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smog is Nothing but black smoke A liquid particle resulting from vapor condensation A combination of smoke and fog A solid particle e.g. flyash Nothing but black smoke A liquid particle resulting from vapor condensation A combination of smoke and fog A solid particle e.g. flyash ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foul odour and bad taste of water is removed by treating with Bleaching powder Activated carbon Copper sulphate Alum Bleaching powder Activated carbon Copper sulphate Alum ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of high concentration of ozone and smog in atmospheric air causes the Damage of electrical insulator on high tension power line Fading of dye on textiles Cracking of rubber products Embrittlement & decrease of folding resistance of paper Damage of electrical insulator on high tension power line Fading of dye on textiles Cracking of rubber products Embrittlement & decrease of folding resistance of paper ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What are the methods of treatment & disposal of radioactive wastes? All of these Biological methods & adsorption in ion exchange materials Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation All of these Biological methods & adsorption in ion exchange materials Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation ANSWER DOWNLOAD EXAMIANS APP
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