Solved question paper for WT-2 Dec-2017 (DIPLOMA automobile engineering 4th)

Workshop technology-2

Previous year question paper with solutions for Workshop technology-2 Dec-2017

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Question paper 1

  1. SECTION-A

    Q1. a) Fill in the blanks.

    i. The angle between the tool face and a plane parallel to the tool base is called_______.

    Answer:

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  3. ii. Fixtures are _______ in construction than jigs.

    Answer:

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  5. iii. In ______ tool moves with the help of a compound slide which is swiveled at an angle to the lathe axis.

    Answer:

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  7. iv. The function of the ______ is to give various feeds to the cutting tool.

    Answer:

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  9. v. _______ is the angle between the leading edge of land and drill axis.

    Answer:

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  11. vi. The basic size of the horizontal boring machine is the diameter of the __________.

    Answer:

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  13. vii. A _______ machine is designed for locating and boring holes in dies, gauges, and other precision parts.

    Answer:

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  15. viii. The downward stroke in a slotter is also called __________ stroke.

    Answer:

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  17. ix. To overcome the problem of chip disposal the broaches are provided with__________.

    Answer:

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  19. x. Mineral oils are composed of __________.

    Answer:

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  21. b) State True or False.

    xi. Cutting fluids provides cushioning effect between the job surface and the tool.

    Answer:

  22. xii. A fixture holds the job and guides the tool.

    Answer:

  23. xiii. In a draw cut shaper the tool cuts the material in forward stroke.

    Answer:

  24. xiv. Pull broaches are longer than push broaches.

    Answer:

  25. xv. For general work the standard two-fluted twist drill possess an included point angle of 118º.

    Answer:

  26. SECTION-B

    Q2. Attempt any five questions.

    a. What is difference between jig and fixture?

    Answer:

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  28. b. Describe the specifications of boring machines

    Answer:

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  30. c. Explain the working principle and function of a planer.

    Answer:

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  32. d. How cutting fluids are selected for different materials?

    Answer:

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  34. e. Explain taper turning and step turning.

    Answer:

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  36. f. Differentiate between pull broaching and push broaching

    Answer:

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  38. g. What do you understand by the tool signature?

    Answer:

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  40. h. Write a short note on high speed steel or tungsten carbide

    Answer:

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  42. SECTION-C

    Q3. Attempt any three questions.

    i. Describe main parts of lathe and their functions

    Answer:

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  44. ii. Describe the construction and working of radial drilling machine.

    Answer:

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  46. iii. How boring machines are classified? Explain the working of a vertical boring machine.

    Answer:

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  48. iv. Name the various methods of lubrication of machine tools. Explain two of them.

    Answer:

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  50. v. Describe comparison between shaper and planer.

    Answer:

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