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Workshop Technology

Workshop Technology
In average work, the tolerance produced by investment casting method is

+1 mm
±0.05 mm
+05 mm
+0.2 mm

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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
The cutting edge of a chisel should be

Hardened and tempered
Tempered
Case hardened
Hardened

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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
Larger than
Equal to
Smaller than

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Workshop Technology
When the file is moved to and fro over the work, it is known as

Draw filing
Cross filing
None of these
Pull and push filing

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Workshop Technology
The cold working of metals is carried out

Below the recrystallisation temperature
Above the recrystallisation temperature
At the recrystallisation temperature
At any temperature

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