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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

  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

  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

  7. Which of the following operation is first performed?

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

  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

  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

  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

  15. Tool signature consists of __________ elements.

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

  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

  19. The tool life is affected by

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