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Workshop Technology

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

Swell
Blow holes
Shift
Cold shuts

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

+1 mm
+0.2 mm
±0.05 mm
+05 mm

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Workshop Technology
For welding plates of thickness more than 12.5 mm, its edges

Do not require bevelling
Should have a double-V or U-groove on both sides
Should be bevelled to a single-V or U-groove
Should have a double-V or U-groove on one side

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Workshop Technology
A mortise gauge is a

Planing tool
Boring tool
Striking tool
Marking tool

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

+0.5 mm
+0.05 mm
±0.2 mm
±1 mm

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Workshop Technology
In arc welding, the temperature of heat produced by the electric arc is of the order of

4000°C to 5000°C
5000°C to 6000°C
6000°C to 7000°C
3000°C to 4000°C

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