Engineering Materials Mcqs

Q.  Chromium in steel_________________?

a. improves wear resistance, cutting ability and toughness
b. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
c. improves cutting ability and reduces hardenability
d. gives ductility, toughness, tensile strength and anticorrosion properties
e. makes steel hard


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MCQs:  Which of the following represents the allotropic forms of iron__________________?
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