Mechanical Engineering :: Workshop Technology
- The casting method adopted for ornaments and toys of nonferrous alloys, is
- The tolerance produced by shell moulding process of casting is
- In order to get uniform thickness of the plate by rolling process, one provides
- The operation of straightening a curved sheet metal, is known as
- The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as
- Extrusion
- The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as
- For arc welding
- In backhand welding, the angle between the welding rod and the work is ________ as compared to forehand welding.
Whatsapp
Facebook
|
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 |