Question 206Steam Plants - Assistant Engineer
70% to passThe purpose of the mica used in a boiler water gage glass assembly is to prevent _______________.
Alight refraction in the glass
Bleakage from the glass
Cetching of the glass
Doverheating of the glass
AI Explanation
The correct answer is C) etching of the glass. The mica used in a boiler water gage glass assembly is intended to prevent etching of the glass. Mica is a mineral that is resistant to heat and chemicals, and it acts as a protective barrier between the glass and the boiler water. This prevents the boiler water from directly contacting the glass, which could cause etching and deterioration of the glass over time. The other answer choices are incorrect because they do not accurately reflect the primary purpose of the mica in this application.
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