The cross section of a thermo-mechanically treated (TMT) reinforcing b – McqOptions

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1.	The cross section of a thermo-mechanically treated (TMT) reinforcing bar has
A.	soft ferrite-pearlite throughout.
B.	hard martensitic throughout.
C.	a soft ferrite-pearlite core with a hard martensitic rim.
D.	a hard martensitic core with a soft pearlite-bainitic rim.
Answer» D. a hard martensitic core with a soft pearlite-bainitic rim.

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