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Workshop Technology

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

√t
1.5 t
3 t
6 t

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Workshop Technology
The operation of cutting of a flat sheet to the desired shape is called

Blanking
Punching
Shearing
Piercing

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Workshop Technology
The advantage of Thermit welding is that

Weld cools almost uniformly
All of these
All parts of the weld section are molten at the same time
Results in a minimum problem with internal residual stresses

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Workshop Technology
The temperature of the inner luminous cone of neutral flame is about

3200°C
2100°C
1250°C
1000°C

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

Bastard file
Second cut file
Smooth file
Rough file

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Workshop Technology
The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as

Cold heading
Hot piercing
Extrusion
Cold peening

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