Download Aptitude Crack
img not found img not found

Building Materials - Engineering

Q1:

The yield strength and tensile strength of low carbon steel may be improved by the addition of

A manganese

B chromium

C nickel

D venadium

E tungsten.

ANS:D - venadium

Vanadium (V) - It increases the yield strength and the tensile strength of carbon steels. Small amount of Vanadium increases the strength of steels significantly. It promotes fine grain and elevates coarsening temperature of austenite. The impact transition temperature increases when vanadium is added.