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Workshop Technology

Workshop Technology
Structural sections such as rails, angles, I-beams are made by

Hot drawing
Hot piercing
Hot rolling
Hot extrusion

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Workshop Technology
A file with 20 teeth in 25 mm is called

Rough file
Bastard file
Second cut file
Smooth file

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Workshop Technology
The sand used for making cores is

Loam sand
Dry sand
Oil sand
Green sand

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Workshop Technology
Cores are used to

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

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Workshop Technology
In submerged arc welding, an arc is produced between a

Two tungsten electrodes and the work
Carbon electrode and the work
Metal electrode and the work
Bare metal electrode and the work

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Workshop Technology
During cold working process

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

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