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Engineering Talks

Conceptual Questions

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  1. Select suitable material for the following cases, indicating the reason

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  3. Give the composition of 35 Mn 2 Mo 45 steel List its main uses.

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  4. Discuss the design of piston for an internal combustion engine.

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  5. Discuss the important non-metallic materials of construction used in engineering practice.

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  6. Write short note on the type of bearing metals.

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  7. Explain the following heat treatment processes

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  8. Write short notes on high speed tool steel and spring steel.

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  9. Suggest suitable materials for the following parts stating the special property which makes it more suitable for use in manufacturing

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  10. Select suitable materials for the following parts stating the special property which makes it most suitable for use in manufacturing

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  11. Write short notes on free cutting steel, and stainless steel.

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  12. State the alloying elements added to steel to get alloy steels and the effect they produce. Give at least one example of each.

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  13. What are the common materials used in Mechanical Engineering Design? How can the properties of steel be improved?

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  14. Define alloy steel. Discuss the effects of nickel, chromium and manganese on steel.

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  15. Define plain carbon steel. How it is designated according to Indian standards?

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  16. Discuss the effect of silicon, manganese, sulphur and phosphorus on cast iron.

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  17. How is grey cast iron designated in Indian standards?

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  18. How cast iron is obtained? Classify and explain different types of cast irons.

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  19. Distinguish clearly amongst cast iron, wrought iron and mild steel regarding their constituents and properties.

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  20. Define the following properties of a material

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  21. Define 'mechanical property of an engineering material. State any six mechanical properties, give their definitions and one example of the material possessing the properties.

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  22. Why are metals in their pure form unsuitable for industrial use?

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  23. Enumerate the most commonly used engineering materials and state at least one important property and one application of each.

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  24. What are the factors to be considered for the selection of materials for the design of machine elements? Discuss.

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  25. How do you classify materials for engineering use?

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  26. What do you understand by preferred numbers? Explain fully

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