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Workshop Technology

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

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

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Workshop Technology
In a gas welding of mild steel using an oxyacetylene flame, the total amount of acetylene consumed is 10 litres. The oxygen consumption from the cylinder is

15 litres
20 litres
10 litres
5 litres

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Workshop Technology
Lap joints are employed on plates having thickness

5 to 10 mm
Less than 3 mm
Above 25 mm
12.5 mm

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Workshop Technology
A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as

Sand wash
Swell
Scab
Shift

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

Upset butt welding
Spot welding
Seam welding
Projection welding

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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
Die
Punch

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