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Workshop Technology

Workshop Technology
The temperature of the inner luminous cone of neutral flame is about

3200°C
1000°C
1250°C
2100°C

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Workshop Technology
In TIG arc welding, the welding zone is shielded by an atmosphere of

Argon gas
None of these
Helium gas
Either (A) or (B)

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Workshop Technology
The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as

Hot piercing
Extrusion
Cold peening
Cold heading

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Workshop Technology
The blank diameter used in thread rolling will be

A little larger than the pitch diameter of the thread
Equal to minor diameter of the thread
Equal to pitch diameter of the thread
A little larger than the minor diameter of the thread

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Workshop Technology
In welding magnesium with TIG arc welding, direct current with ________ is used.

Straight polarity
None of these
Reversed polarity
Both (A) and (B)

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Workshop Technology
Lap joints are employed on plates having thickness

Above 25 mm
5 to 10 mm
12.5 mm
Less than 3 mm

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