During carburization to obtain a twofold increase in penetration requi – McqOptions

MCQOPTIONS

1.	During carburization to obtain a twofold increase in penetration requires a __________
A.	Fourfold decrease in time
B.	Threefold increase in time
C.	Fourfold increase in time
D.	Twofold increase in time
Answer» D. Twofold increase in time

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