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Workshop Technology

Workshop Technology
The increase in hardness due to cold working, is called

Age hardening
Work hardening
Flame hardening
Induction hardening

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Workshop Technology
The maximum flame temperature occurs

At the outer cone
At the torch tip
Between the outer and inner cone
At the inner cone

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Workshop Technology
In blanking operation, the clearance is provided on

Punch
Half on the punch and half on the die
Either on punch or die depending upon designer's choice
Die

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Workshop Technology
The recrystallisation temperature of steel is

800°C
600°C
None of these
400°C

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Workshop Technology
The oxyacetylene gas used in gas welding produce a flame temperature of

3200°C
2100°C
2400°C
1800°C

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Workshop Technology
Cast iron and steel pipes are produced by

Investment casting
True centrifugal casting
Die casting
Slush casting

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