Discussion :: Workshop Technology
- A casting defect which results in general enlargement of a casting is known as
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Answer : Option C
Explanation :
A swell occurs when the mold wall gives way across a whole face, and is caused by an improperly rammed mold.
Burn-on occurs when metallic oxides interact with impurities in silica sands.
The result is sand particles embedded in the surface of the finished casting.
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