Which of the following statement about core is incorrect?
A) core should be capable of collapsing after the molten metal has solidified around it
B) core should produce maximum amount of gas when in contact with molten metal
C) core should be capable of collapsing shortly after the molten metal has solidified around it
D) core should be permeable to escape of core gases
Correct Answer:
Verified
Q6: The burnt on sand causes difficulty in
A)machining
Q7: The melting unit is an integral part
Q8: Refractories should have all the following properties
Q9: Heating of core is necessary while using
Q10: Which of the following metals has the
Q12: Rammer used for moulding the sand in
Q13: All of the following operations on castings
Q14: Wax patterns are used in
A)non-ferrous castings
B)investment casting
Q15: In copper alloy foundry which of the
Q16: While selecting wood for patterns, one should
A)discard
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