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Workshop Technology

Workshop Technology
The process of increasing the cross-section of a bar at the expense of its length, is called

Upsetting
Drawing down
Peening
Spinning

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Workshop Technology
In backhand welding, the angle between the welding rod and the work is ___ as compared to forehand welding.

Less
More
None of the listed here
Same

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Workshop Technology
For welding plates of thickness less than 5 mm, its edges

Should have a double-V or U-groove on one side
Should have a double-V or U-groove on both sides
Should be bevelled to a single-V or U-groove
Do not require bevelling

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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

Piercing
Punching
Shearing
Blanking

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Workshop Technology
In arc welding, the electric arc is produced between the work and the electrode by

Flow of current
Contact resistance
Voltage
All of these

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Workshop Technology
The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)

6 t
1.5 t
√t
3 t

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