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Workshop Technology

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

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

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Workshop Technology
The welding process used to join the ends of two pipes of uniform cross-section, is

Seam welding
Upset butt welding
Projection welding
Spot welding

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Workshop Technology
A file with 20 teeth in 25 mm is called

Bastard file
Rough file
Smooth file
Second cut file

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Workshop Technology
In forehand welding, the angle between the welding rod and the work is kept as

30°-40°
50°-60°
60°-70°
40°-50°

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Workshop Technology
The centrifugal casting method, is used for casting articles of

Symmetrical shape about vertical axis
Symmetrical shape about horizontal axis
Nonferrous metal only
Irregular shape

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Workshop Technology
In electric resistance welding, pressure applied varies from

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

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