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Match the casting defects in Group 1 with cause given in...

This question belongs to Metallurgical Engineering Foundry Metallurgy
Foundry Metallurgy
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Match the casting defects in Group 1 with cause given in Group 2.
Group 1 Group 2
P. Hot tear 1. Insufficient melt superheat
Q. Misrun 2. High residual stresses
R. Blister 3. Improper venting
S. Rat tail 4. Expansion of sand

Answer & Solution
Correct Answer: Option D
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