General Studies · Metal Casting
Why is the porous structure provided by silica sand necessary in the metal casting process?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1For the escape of gases
- 2For the escape of vapours
- 3For the escape of both gases and vapours✓
- 4None of the mentioned
Correct answer
For the escape of both gases and vapours
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