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WORKSHOP TECHNOLOGY

Workshop Technology
A moving mandrel is used in

Metal cutting
Wire drawing
Tube drawing
Forging

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Workshop Technology
The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)

6 t
√t
1.5 t
3 t

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Workshop Technology
The parts of circular cross-section which are symmetrical about the axis of rotation are made by

Hot extrusion
Hot forging
Hot drawing
Hot spinning

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Workshop Technology
The recrystallisation temperature of steel is

400°C
None of these
800°C
600°C

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Workshop Technology
The teeth of hacksaw blade are bent

Towards left
Alternately towards right and left and every third or fourth left straight
Towards right
May be bent in any direction

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