Q
Cyaniding is the process of________________?
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A
A. Dipping steel in cyanide bath
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B
B. Reacting steel surface with cyanide salts
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C
C. Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
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D
D. Obtaining cyanide salts
Correct Answer:
C. C. Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness