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Workshop Technology

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

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

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

All of these
Contact resistance
Voltage
Flow of current

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Workshop Technology
Which of the following welding method uses a pool of molten metal?

Carbon arc welding
Submerged arc welding
TIG arc welding
MIG arc welding

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Workshop Technology
A sand employed on the faces of the pattern before moulding, is called

Loam sand
Green sand
Parting sand
Dry sand

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Workshop Technology
The operation of bending a sheet of metal along a curved axis, is known as

Slitting
Notching
Forming
Plunging

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Workshop Technology
The process of increasing the cross-section of a bar at the expense of its length, is called

Spinning
Peening
Drawing down
Upsetting

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