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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)

6 t
1.5 t
3 t
√t

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Workshop Technology
The casting method adopted for ornaments and toys of nonferrous alloys, is

Centrifugal casting
Permanent mould casting
Die casting
Slush casting

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Workshop Technology
The fullers are used

To finish the punched hole
For finishing flat surfaces
For punching a hole
For necking down a piece of work

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Workshop Technology
The minimum size of a bloom is

20 cm × 20 cm
15 cm × 15 cm
10 cm × 10 cm
5 cm × 5 cm

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Workshop Technology
A casting defect which occurs due to improper venting of sand is known as

Blow holes
Cold shuts
Swell
Shift

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Workshop Technology
The metal is subjected to mechanical working for

Controlling the direction of flow lines
Refining grain size
Reducing original block into desired shape
All of these

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