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Workshop Technology

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

Swell
Shift
Cold shuts
Blow holes

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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

Extrusion
Hot piercing
Cold peening
Cold heading

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Workshop Technology
The advantage of Thermit welding is that

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

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Workshop Technology
When a pattern is made in three parts, the top part, is known as a

Drag
None of these
Cheek
Cope

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Workshop Technology
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be

10 mm/m
16 mm/m
20 mm/m
26 mm/m

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Workshop Technology
In order to check the clearance between two mating surfaces, a ___ gauge should be used.

Ring
Plug
Feeler
None of the listed here

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