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Workshop Technology

Workshop Technology
The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called

Blanking
Piercing
Punching
Shearing

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Workshop Technology
The welding process used to join the ends of two pipes of uniform cross-section, is

Seam welding
Upset butt welding
Spot welding
Projection welding

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Workshop Technology
In sheet metal work, he cutting force on the tool can be reduced by

Providing shear on tool
Increasing the hardness of tool
Grinding the cutting edges sharp
Increasing the hardness of die

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Workshop Technology
Cores are used to

Form internal cavities in the casting
All of these
Form a part of a green sand mould
Improve mould surface

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Workshop Technology
The consumable electrode is used in

Carbon arc welding
MIG arc welding
TIG arc welding
Submerged arc welding

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Workshop Technology
During cold working process

Close dimensional tolerance can be maintained
Strength and hardness of metal increases
Grain structure is distorted
All of the listed here

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