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Workshop Technology

Workshop Technology
The cutting edge of a chisel should be

Case hardened
Hardened and tempered
Hardened
Tempered

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Workshop Technology
The operation of cutting of a flat sheet to the desired shape is called

Punching
Piercing
Blanking
Shearing

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Workshop Technology
For gas welding, the pressure desired at the welding torch for oxygen is

70 to 280 kN/m²
7 to 103 kN/m²
280 to 560 kN/m²
560 to 840 kN/m²

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Workshop Technology
The recrystallisation temperature of steel is

800°C
400°C
600°C
None of these

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Workshop Technology
In welding copper alloys with TIG arc welding

Any one of the listed here
Alternating current is used
Direct current with reversed polarity is used
Direct current with straight polarity is used

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Workshop Technology
Scribing block is used to

Check the surface roughness
Check the trueness of flat surfaces
Hold the round bars during marking
Locate the centres of round bars

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