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Workshop Technology

Workshop Technology
In die casting, machining allowance is

Very large
Large
Small
Not provided

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Workshop Technology
Scribing block is used to

Check the surface roughness
Check the trueness of flat surfaces
Locate the centres of round bars
Hold the round bars during marking

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Workshop Technology
According to Indian standards, the total numbers of tolerance grades are

8
18
20
12

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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

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

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Workshop Technology
The metal patterns as compared to wooden patterns require less

Distortion allowance
Machining allowance
Shrinkage allowance
Draft allowance

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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)

3 t
6 t
1.5 t
√t

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