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Workshop Technology

Workshop Technology
The recrystallisation temperature of steel is

None of these
600°C
400°C
800°C

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Workshop Technology
The electron beam welding can be carried out in

A pressurized inert gas chamber
A shielded gas environment
Open air
Vacuum

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Workshop Technology
In electric resistance welding, pressure applied varies from

10 to 25 MPa
25 to 55 MPa
1 to 5 MPa
5 to 10 MPa

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Workshop Technology
In sheet metal work, he cutting force on the tool can be reduced by

Increasing the hardness of tool
Grinding the cutting edges sharp
Increasing the hardness of die
Providing shear on tool

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Workshop Technology
The minimum size of a bloom is

10 cm × 10 cm
20 cm × 20 cm
15 cm × 15 cm
5 cm × 5 cm

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Workshop Technology
The mode of deformation of the metal during spinning is

Bending and stretching
Stretching
Bending
Rolling and stretching

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