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Workshop Technology

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

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

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Workshop Technology
In blanking operation, the clearance is provided on

Either on punch or die depending upon designer's choice
Half on the punch and half on the die
Punch
Die

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Workshop Technology
When the dimension is expressed as 20­ -0.025 ⁺⁰∙⁰³⁵, then the basic size is

20.035 mm
20.025 mm
20 mm
19.975 mm

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Workshop Technology
In ___ welding, the weld may be made either from left to right or from right to left.

Backhand
None of the listed here
Vertical
Forehand

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Workshop Technology
The tolerance produced by shell moulding process of casting is

+0.05 mm
±1 mm
+0.5 mm
±0.2 mm

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Workshop Technology
The directional solidification in casting can be improved by using

Chills, chaplets and padding
Chills and chaplets
Chaplets and padding
Chills and padding

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