Mechanical Engineering :: Workshop Technology
- When more volume of acetylene and less volume of oxygen is supplied, then a ________ flame is obtained.
- In permanent mould casting method
- Cutting and forming operations can be performed in a single operation in a
- The process of decreasing the cross-section of a bar and increasing its length, is called
- The process of increasing the cross-section of a bar at the expense of its length, is called
- The cold working of metals is carried out
- The hot working of metals is carried out
- In a gas welding of mild steel using an oxyacetylene flame, the total amount of acetylene consumed is 10 litres. The oxygen consumption from the cylinder is
- Which of the following welding process uses non-consumable electrodes?
- The oxyacetylene gas used in gas welding produce a flame temperature of
Whatsapp
Facebook
|
A.
Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition |
|
B.
Molten metal is poured and allowed to solidify while the mould is revolving |
|
C.
Molten metal is forced into mould under high pressure |
|
D.
None of the above |