Engineering Materials Practice Set-3

May 9, 2021

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1. Which of the following metal shrinks most from molten state to solid state?
2. The tensile strength of wrought iron is maximum
3. Tungsten in steel
4. The surface hardness of the following order is achieved by nitriding operation
5. Corundum contains more than 95%
6. The main alloying elements high speed steel in order of increasing proportion are
7. There are fourteen atoms in a unit cell of
8. The aluminium alloy made by melting aluminium with 2 to 10% magnesium and 1.75% copper is called
9. Which of the following elements does not impart hardness to steel?
10. In compression, a prism of brittle material will break

 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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