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Workshop Technology

Workshop Technology
The increase in hardness due to cold working, is called

Work hardening
Flame hardening
Induction hardening
Age hardening

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Workshop Technology
The upsetting is a process of

Bending of a bar
Joining the two surfaces of metal under pressure after heating
Increasing the cross-section of a bar
Reducing the cross-section of a bar

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Workshop Technology
According to Indian standards, the total numbers of tolerance grades are

20
18
8
12

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Workshop Technology
The cold working of metals is carried out

At any temperature
Below the recrystallisation temperature
Above the recrystallisation temperature
At the recrystallisation temperature

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Workshop Technology
Cutting and forming operations can be performed in a single operation in a

Compound die
Progressive die
Simple die
Combination die

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

Blanking
Punching
Shearing
Piercing

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