Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Suspended silica Turbidity Dissolved oxygen Caustic embrittlement Suspended silica Turbidity Dissolved oxygen Caustic embrittlement ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of potable water should be between 4 to 5 1 to 1.5 6.5 to 8 13 to 14 4 to 5 1 to 1.5 6.5 to 8 13 to 14 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 9 to 10 4 to 5 15 to 20 1 to 2 9 to 10 4 to 5 15 to 20 1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The progressive warming up of the earth's surface is mainly due to the Thickening of ozone layer De-forestation Automobile exhaust Blanketing effect of CO₂ in the atmosphere Thickening of ozone layer De-forestation Automobile exhaust Blanketing effect of CO₂ in the atmosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of coagulant needed for coagulation of water increases with(i) Increase in turbidity of water(ii) Decrease in turbidity of water(iii) Increase in temperature of water(iv) Decrease in temperature of waterThe correct answer is (ii) and (iv) (i)and(iv) (ii) and (iii) (i) and (ii) (ii) and (iv) (i)and(iv) (ii) and (iii) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a weightless pollutant? Noise pollution SPM Thermal pollution Radioactive rays Noise pollution SPM Thermal pollution Radioactive rays ANSWER DOWNLOAD EXAMIANS APP
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