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Time to time cleaning of stored pattern should be done by ___________

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in Casting-Forming-Welding I by (687k points)
Time to time cleaning of stored pattern should be done by ___________

(a) Distilled water

(b) Dry cleaning

(c) Treated with proper chemical fluids

(d) Vegetable oils

The question was posed to me by my school principal while I was bunking the class.

This interesting question is from Finishing Patterns & Storing of Patterns in division Pattern and Pattern Making of Casting-Forming-Welding I

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The correct option is (b) Dry cleaning

Easy explanation: No dust or chemical or moisture should be left over the surface of the pattern for longer periods hence time to time dry cleaning is a must.

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