Question

A small amount of manganese metal added to iron gives it elasticity and high tensile strength. Such steel is used in making:

• A. wheel axles
• B. almirahs
• C. boxes
• D. springs

Answer 1

The correct option is A wheel axles

Manganese increases hardenability and tensile strength of steel, but to a lesser extent than carbon. It is also able to decrease the critical cooling rate during hardening, thus increasing the steels hardenability much more efficient than any other alloying elements.

Such steel is used in making of wheel axels.

Hence option A is correct answer.