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Workshop Technology

Workshop Technology
Lap joints are employed on plates having thickness

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

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Workshop Technology
In submerged arc welding, an arc is produced between a

Metal electrode and the work
Two tungsten electrodes and the work
Carbon electrode and the work
Bare metal electrode and the work

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

Upsetting
Drawing down
Spinning
Peening

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Workshop Technology
In average work, the tolerance produced by investment casting method is

+0.2 mm
+05 mm
±0.05 mm
+1 mm

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Workshop Technology
The upsetting is a process of

Reducing the cross-section of a bar
Bending of a bar
Increasing the cross-section of a bar
Joining the two surfaces of metal under pressure after heating

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Workshop Technology
A casting defect which results in general enlargement of a casting is known as

Shift
Scab
Sand wash
Swell

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