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  • Question

  • The tool may fail due to


  • Options
  • A. cracking at the cutting edge due to thermal stresses
  • B. chipping of the cutting edge
  • C. plastic deformation of the cutting edge
  • D. all of these

  • Correct Answer
  • all of these 

    • Production Engineering problems

    Search Results

    • 1. The grinding of long, slender shafts or bars is usually done by

    • Options
    • A. infeed grinding
    • B. through feed grinding
    • C. endfeed grinding
    • D. any one of these
      • Discuss
    • 2. In twist fluted drills, chips do not move out automatically.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 3. The hard grade grinding wheels are denoted by the letters

    • Options
    • A. A to H
    • B. I to P
    • C. Q to Z
    • D. A to P
      • Discuss
    • 4. 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

    • Options
    • A. 5°
    • B. 6°
    • C. 8°
    • D. 10°
      • Discuss
    • 5. The angle formed by the leading edge of the land with a plane having the axis of the drill, is called

    • Options
    • A. helix or rake angle
    • B. point angle
    • C. chisel edge angle
    • D. lip clearance angle
      • Discuss
    • 6. If the shear angle is large and the chip-tool contact area is low, then the tool life will be more.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 7. As the cutting speed increases, the tool cutting forces

    • Options
    • A. remain constant
    • B. increases
    • C. decreases
    • D. first increases and then decreases
      • Discuss
    • 8. In machining metal, cutting force at the cutting edge is measured by a

    • Options
    • A. wattmeter
    • B. dynamometer
    • C. hydrometer
    • D. pyrometer
      • Discuss
    • 9. A feed gear box for a screw cutting lathe is designed on the basis of

    • Options
    • A. geometric progression
    • B. arithmetic progression
    • C. harmonic progression
    • D. none of these
      • Discuss
    • 10. The tailstock set over required to turn a taper on the entire length of a workpiece having diameters D and d is

    • Options
    • A.
    • B.
    • C.
    • D. D - d
      • Discuss

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