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Workshop Technology

Workshop Technology
The oxyacetylene gas used in gas welding produce a flame temperature of

1800°C
2100°C
3200°C
2400°C

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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
Which of the following material can be used for making patterns?

Aluminium
Wax
All of these
Lead

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Workshop Technology
In a unilateral system of tolerance, the tolerance is allowed on

Both sides of the actual size
Both sides of the nominal size
One side of the actual size
One side of the nominal size

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Workshop Technology
Cores are used to

Improve mould surface
Form a part of a green sand mould
Form internal cavities in the casting
All of these

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Workshop Technology
In sheet metal blanking, shear is provided on punches and dies so that

Press load is reduced
Good cut edge is obtained
Cut blanks is straight
Warping of sheet is minimized

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