Workshop Technology - Engineering

Q1:

Extrusion

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

ANS: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

Explanation: No answer description is available.