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Mechanical Engineering :: Workshop Technology

  1. The dowels are

  2. A.

     Wooden nails

    B.

     Box nails

    C.

     Wire nails

    D.

     None of these

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  3. Sand wash is a casting defect which

  4. A.

     Results in a mismatching of the top and bottom parts of a casting

    B.

     Results in general enlargement of the casting

    C.

     Occurs near the ingates as rough lumps on the surface of a casting

    D.

     Occurs as sand patches on the upper surface of a casting

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  5. Shift is a casting defect which

  6. A.

     Results in a mismatching of the top and bottom parts of a casting

    B.

     Results in general enlargement of a casting

    C.

     Occurs near the ingates as rough lumps on the surface of a casting

    D.

     Occurs as sand patches on the upper surface of a casting

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  7. The draft or taper allowance on casting is generally

  8. A.

     1 to 2 mm/m

    B.

     2 to 5 mm/m

    C.

     5 to 10 mm/m

    D.

     10 to 15 mm/m

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  9. Projection welding is a

  10. A.

     Continuous spot welding process

    B.

     Multi-spot welding process

    C.

     Arc welding process

    D.

     Process used for joining round bars

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  11. In a ________, two or more operations are performed simultaneously at the single stroke of the ram.

  12. A.

     Simple die

    B.

     Progressive die

    C.

     Combination die

    D.

     Compound die

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  13. In a ________, both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

  14. A.

     Simple die

    B.

     Progressive die

    C.

     Combination die

    D.

     Compound die

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  15. The chisel used for cutting key ways is

  16. A.

     Flat chisel

    B.

     Cape chisel

    C.

     Round nose chisel

    D.

     Diamond pointed chisel

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  17. the most preferred process for casting gas turbine blades is

  18. A.

     Die casting

    B.

     Shell moulding

    C.

     Investment moulding

    D.

     Sand casting

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  19. When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by

  20. A.

     Washing it with water

    B.

     Rubbing on wood

    C.

     Washing it with dilute acid

    D.

     Using file card

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