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The most prominent single cause of corrosion in boilertubes, drums, economisers and steam superheaters in a thermal power plant boiler is the | |
A. | water alkalinity & leakage. [Wrong Answer] |
B. | hydrazine addition during feed water treatment. [Wrong Answer] |
C. | release of non-condensable gas from water in the boiler. [Correct Answer] |
D. | scale formation. [Wrong Answer] |