Engineering Materials Mcqs

Q.  Pick up the wrong statement?

a. aluminium in steel results in excessive grain growth
b. manganese in steel induces hardness
c. nickel and chromium in steel help in raising the elastic limit and improve the resilience and ductility
d. tungsten in steels improves magnetic properties and hardenability
e. sulphur, phosphorous and lead im¬prove machining properties of steel


ANSWER: See Answer
 
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