Uniform ramming of sand in green sand moulding process leads to____________________?
Correct answer: B. Greater dimensional stability of the casting
- A. Reduced chance of gas porosity
- B. Greater dimensional stability of the casting
- C. Uniform flow of molten metal into the mould cavity
- D. Less sand expansion type of casting defect
Explanation
Uniform ramming produces consistent mould hardness and packing, giving the casting more uniform support and better dimensional stability. It also helps control permeability, but the principal result among these choices is improved dimensional accuracy.
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