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Workshop Technology

Workshop Technology
The increase in hardness due to cold working, is called

Induction hardening
Flame hardening
Age hardening
Work hardening

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Workshop Technology
The tolerance produced by shell moulding process of casting is

+0.05 mm
±0.2 mm
+0.5 mm
±1 mm

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Workshop Technology
A pattern maker's shrinkage rule considers

Only shrinkage allowance
All materials of the pattern
All pattern allowances
All materials to be cast

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Workshop Technology
The current in electric resistance welding can be regulated by

Changing the secondary turns of the transformer
Changing the primary turns of the transformer
Any one of the listed here
Varying the input supply

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

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

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Workshop Technology
In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.

None of these
Smaller than
Larger than
Equal to

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