Environmental Engineering in CE In water chemical treatment plant, use of chloramines ensures Taste & odour control Weed control in reservoirs Removal of permanent hardness Disinfection Taste & odour control Weed control in reservoirs Removal of permanent hardness Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Oxidation followed by settling & filtration Lime soda process or manganese zeolite process Ion exchange process Chlorination Oxidation followed by settling & filtration Lime soda process or manganese zeolite process Ion exchange process Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Cation exchanger Coagulation Chlorine Irradiation of water by ultraviolet light Cation exchanger Coagulation Chlorine Irradiation of water by ultraviolet light ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by Deaeration of feed water Enhancing pH of feed water by adding alkali Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these Deaeration of feed water Enhancing pH of feed water by adding alkali Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes Nervous system disorder Anaemia All of these Blood poisoning Nervous system disorder Anaemia All of these Blood poisoning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Dissolved oxygen Turbidity Caustic embrittlement Suspended silica Dissolved oxygen Turbidity Caustic embrittlement Suspended silica ANSWER DOWNLOAD EXAMIANS APP
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