Hamad Chemical Environmental Engineering 19/08/2021 A. 0.5 B. 1 C. 3.5 D. 9.05 Related Mcqs: ______________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant ?A. Calcium B. Fluorine C. Phosphorous D. Sulphur... Deaeration of high pressure boiler feed water is done to reduce ___________________?A. Foaming from boilers B. Its dissolved oxygen content C. Its silica content D. Caustic embrittlement... World’s worst radioactive pollution was caused by nuclear reactor disaster which occured in ___________________?A. Arizona (U.S.A.) B. Chernobyl (undivided U.S.S.R.) C. Pennsylvania (U.S.A.) D. Moscow (U.S.S.R.)... Maximum permissible residual chlorine in treated water should be ____________ mg/litre?A. 0.001 to 0.01 B. 0.2 to 0.3 C. 2 to 3 D. 5 to 10... Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of _____________ present in it?A. Coal ash B. Potassium cyanide C. Ortho-xylene D. None of these...
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