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Mechanical Engineering :: Production Engineering

  1. The grinding wheel speed (surface speed in m/min) usually varies from

  2. A.
    500 to 1000
    B.
    1000 to 1500
    C.
    1500 to 2000
    D.
    2000 to 2500

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  3. The factor considered for evaluation of machinability is

  4. A.
    cutting forces and power consumption
    B.
    tool life
    C.
    type of chips and shear angle
    D.
    all of these

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  5. In oblique cutting system, the tool may or may not generate a surface parallel to the workface.

  6. A.
    Yes
    B.
    No

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  7. The plunge grinding requires very __________ speed.

  8. A.
    high
    B.
    low

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  9. In conventional milling, the cutting force tends to lift the work.

  10. A.
    True
    B.
    False

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  11. In machining metal, cutting force at the cutting edge is measured by a

  12. A.
    wattmeter
    B.
    dynamometer
    C.
    hydrometer
    D.
    pyrometer

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  13. With the same tool life, the maximum material per minute is removed by

  14. A.
    increasing the cutting speed
    B.
    decreasing the cutting speed
    C.
    increasing the depth of cut
    D.
    increasing the feed rate

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  15. The process of removing metal by a cutter which is rotated against the direction of travel of workpiece, is called

  16. A.
    up milling
    B.
    down milling
    C.
    face milling
    D.
    end milling

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  17. A feed gear box for a screw cutting lathe is designed on the basis of

  18. A.
    geometric progression
    B.
    arithmetic progression
    C.
    harmonic progression
    D.
    none of these

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  19. In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be

  20. A.
    B.
    C.
    D.
    10°

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