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Workshop Technology

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

Induction hardening
Flame hardening
Age hardening
Work hardening

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Workshop Technology
The material which can be best cut with oxygen cutting process is

Brass
Aluminium
Copper
Mild steel

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Workshop Technology
In arc welding, the electric arc is produced between the work and the electrode by

Flow of current
Contact resistance
All of these
Voltage

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Workshop Technology
The maximum flame temperature occurs

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

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Workshop Technology
Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?

Drawing
Rolling
Extrusion
Extrusion and rolling

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Workshop Technology
The adhesiveness is the property of sand due to which

It evolves a great amount of steam and other gases
The sand grains stick together
It clings to the sides of a moulding box
None of these

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