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Mechanical Engineering
MEDIUM
ENGLISH
Mechanical Engineering
Chromium in steel_________________?
improves wear resistance, cutting ability and toughness
Correct answer
B
refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Option B
C
improves cutting ability and reduces hardenability
Option C
D
gives ductility, toughness, tensile strength and anticorrosion properties
Option D
Correct answer: A
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