Dry sand does not have the strength for what functions?
A. To withstand corrosion forces
B. To withstand pressure of molten metal
C. To be able to retain its shape
D. To be able to retain the hardenability
Answer:D
Dry sand does not have the strength for what functions?
A. To withstand corrosion forces B. To withstand pressure of molten metal C. To be able to retain its shape D. To be able to retain the hardenability