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Workshop Technology

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

+05 mm
+0.2 mm
+1 mm
±0.05 mm

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

Shift
Swell
Blow holes
Cold shuts

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Workshop Technology
In forehand welding, the weld is made

From right to left
Either from left to right or from right to left
From left to right
First from left to right and then from right to left

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Workshop Technology
Thermit welding is often used in

Repairing broken shears
Replacing broken gear teeth
All of these
Joining rails, truck frames and locomotive frames etc.

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Workshop Technology
Cutting and forming operations can be performed in a single operation in a

Simple die
Compound die
Combination die
Progressive die

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

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

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