_ Scale formation in boiler is controlled by$? – McqOptions

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1.	_ Scale formation in boiler is controlled by$?
A.	Preheating of feed water
B.	Reduction in hardness, silica & alumina in feed water
C.	Keeping the pH value of feed water just below 7
D.	Eliminating H‚Äö√á√áS in feed water
Answer» C. Keeping the pH value of feed water just below 7

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