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Mechanical Engineering :: Production Engineering

  1. A broach has

  2. A.
    roughing teeth
    B.
    semi-finishing teeth
    C.
    finishing teeth
    D.
    all of these

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  3. A round nose tool has no back rake and side rake.

  4. A.
    Correct
    B.
    Incorrect

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  5. In electro-discharge machining, tool is made of

  6. A.
    brass
    B.
    copper
    C.
    copper tungsten alloy
    D.
    all of these

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  7. The cutting speed is maximum while machining __________ with a high speed steel tool.

  8. A.
    cast iron
    B.
    mild steel
    C.
    brass
    D.
    aluminium

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  9. The obtuse angle, included between the chisel edge and the lip as viewed from the end of a drill, is called

  10. A.
    helix or rake angle
    B.
    point angle
    C.
    chisel edge angle
    D.
    lip clearance angle

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  11. The plain milling machine is more rigid and heavier in construction than a universal milling machine of the same size.

  12. A.
    Correct
    B.
    Incorrect

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  13. An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as

  14. A.
    counter-boring
    B.
    grooving
    C.
    knurling
    D.
    facing

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  15. An operation of enlarging the end of a hole cylindrically is known as grooving.

  16. A.
    Correct
    B.
    Incorrect

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  17. Which of the following statement is wrong?

  18. A.
    The larger side rake angle produces chipping.
    B.
    The smaller rake angle produces excessive wear and deformation in tool.
    C.
    The side cutting edge angle (less than 15°) increases tool life.
    D.
    The increase in nose radius decreases tool life.

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  19. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?

  20. A.
    Sensitive drilling machine
    B.
    Radial drilling machine
    C.
    Gang drilling machine
    D.
    Multiple spindle drilling machine

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