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Mechanical Engineering :: Workshop Technology

  1. A taper provided on the pattern for its easy and clean withdrawal from the mould is known as

  2. A.

     Machining allowance

    B.

     Draft allowance

    C.

     Shrinkage allowance

    D.

     Distortion allowance

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  3. Blanking and piercing operations can be performed simultaneously in a

  4. A.

     Simple die

    B.

     Progressive die

    C.

     Compound die

    D.

     Combination die

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  5. A file with 20 teeth in 25 mm is called

  6. A.

     Rough file

    B.

     Bastard file

    C.

     Second cut file

    D.

     Smooth file

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  7. For welding plates of thickness less than 5 mm, its edges

  8. A.

     Do not require bevelling

    B.

     Should be bevelled to a single-V or U-groove

    C.

     Should have a double-V or U-groove on one side

    D.

     Should have a double-V or U-groove on both sides

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  9. The accuracy of micrometers, calipers, dial indicators can be checked by a

  10. A.

     Feeler gauge

    B.

     Slip gauge

    C.

     Ring gauge

    D.

     Plug gauge

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  11. The current in electric resistance welding can be regulated by

  12. A.

     Varying the input supply

    B.

     Changing the primary turns of the transformer

    C.

     Changing the secondary turns of the transformer

    D.

     Any one of the above

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  13. In a bilateral system of tolerance, the tolerance is allowed on

  14. A.

     One side of the actual size

    B.

     One side of the nominal size

    C.

     Both sides of the actual size

    D.

     Both sides of the nominal size

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  15. In a unilateral system of tolerance, the tolerance is allowed on

  16. A.

     One side of the actual size

    B.

     One side of the nominal size

    C.

     Both sides of the actual size

    D.

     Both sides of the nominal size

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  17. Tandem drawing of wires and tubes is necessary because

  18. A.

     It is not possible to reduce at one stage

    B.

     Annealing is needed between stages

    C.

     Accuracy in dimensions is not possible otherwise

    D.

     Surface finish improves after every drawing stage

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  19. Seam welding is best adopted for metal thickness ranging from

  20. A.

     0.025 to 3 mm

    B.

     3 to 5 mm

    C.

     5 to 8 mm

    D.

     8 to 10 mm

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