Workshop Technology


  • A. Is extensively used for making bolts and nuts
  • B. Is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work
  • C. Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
  • D. Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
Answer: Option D.

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