Engineering Materials Practice Set-3

May 9, 2021

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1. Hematite iron ore contains iron about
2. Cementite consist of
3. A specimen of aluminium metal when observed under microscope shows
4. Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio
5. Which of the following represents the allotropic forms of iron?
6. The surface hardness of the following order is achieved by nitriding operation
7. Large forgings, crank shafts, axles normally contain carbon up to
8. The aluminium alloy made by melting aluminium with 2 to 10% magnesium and 1.75% copper is called
9. Which of the following statement is incorrect about duralumin?
10. The machinability of steel is improved by adding

 

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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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