Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Lime Alum Hydrazine Ferrous sulphate Lime Alum Hydrazine Ferrous sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most practical and economical method for removal of suspended solid matter from polluted water? Chlorination Biological oxidation Skimming off Sedimentation Chlorination Biological oxidation Skimming off Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polyvinyl chloride containers are not suitable for storing Woolen clothes Metallic powder Foodstuffs None of these Woolen clothes Metallic powder Foodstuffs None of these ANSWER DOWNLOAD EXAMIANS APP
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 Only (iii) Only (i) Both (i) and (iii) Both (i) and (ii) Only (iii) Only (i) Both (i) and (iii) Both (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) 4B B 8B 2B 4B B 8B 2B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inorganic impurities causing water pollution is Carbohydrates Salts of metals Fats Protein Carbohydrates Salts of metals Fats Protein ANSWER DOWNLOAD EXAMIANS APP
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