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The propulsion of water into steam drum by extremely rapid, almost explosive boiling of water at the heating surface is called ___________

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The propulsion of water into steam drum by extremely rapid, almost explosive boiling of water at the heating surface is called ___________

(a) Foaming

(b) Priming

(c) Corrosion

(d) Caustic embrittlement

The question was posed to me in semester exam.

This interesting question is from Boiler Feed Water topic in chapter Water and its Treatment of Engineering Chemistry II

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Right choice is (b) Priming

For explanation: The propulsion of water into steam drum by extremely rapid, almost explosive boiling of water at the heating surface is called priming. Priming is necessary as it removes all the air voids from the passage of water.

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