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Mechanical Engineering :: Production Engineering

  1. Discontinuous chips are formed during machining of

  2. A.
    brittle metals
    B.
    ductile metals
    C.
    hard metals
    D.
    soft metals

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  3. A drill mainly used in drilling brass, copper or softer materials, is

  4. A.
    flat drill
    B.
    straight fluted drill
    C.
    parallel shank twist drill
    D.
    tapered shank twist drill

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  5. In a planer

  6. A.
    tool is stationary and work reciprocates
    B.
    work is stationary and tool reciprocates
    C.
    tool moves over stationary work
    D.
    tool moves over reciprocating work

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  7. Which of the following operation is first performed?

  8. A.
    Spot facing
    B.
    Boring
    C.
    Tapping
    D.
    Drilling

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  9. The size of a lathe is specified by the

  10. A.
    length between centres
    B.
    swing diameter over the bed
    C.
    swing diameter over the carriage
    D.
    all of these

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  11. If the cutting speed is increased, then the built-up-edge

  12. A.
    becomes longer
    B.
    may or may not form
    C.
    becomes smaller and finally does not form at all
    D.
    has nothing to do with speed

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  13. For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is

  14. A.
    5 m/min
    B.
    10 m/min
    C.
    15 m/min
    D.
    30 m/min

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  15. Tool signature consists of __________ elements.

  16. A.
    two
    B.
    four
    C.
    five
    D.
    seven

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  17. The negative rake is usually provided on

  18. A.
    high carbon steel tools
    B.
    high speed steel tools
    C.
    cemented carbide tools
    D.
    all of these

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  19. The tool life is affected by

  20. A.
    depth of cut
    B.
    cutting speed
    C.
    feed
    D.
    all of these

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