1.

What is the Brinell hardness of pearlite?(a) 150(b) 180(c) 210(d) 240

Answer» The correct choice is (b) 180

The best I can explain: Pearlite is not the hardest form. The Brinell hardness of pearlite is only 180. There is a harder material than pearlite, called as martensite, which has Brinell hardness ranging from 650-700.


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