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Workshop Technology

Workshop Technology
Seam welding is best adopted for metal thickness ranging from

3 to 5 mm
5 to 8 mm
8 to 10 mm
0.025 to 3 mm

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

Upsetting
Peening
Spinning
Drawing down

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Workshop Technology
The electrodes used in spot welding have a tip of

Copper
Brass
Stainless steel
Aluminium

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Workshop Technology
The temperature of the inner luminous cone of neutral flame is about

3200°C
1250°C
1000°C
2100°C

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Workshop Technology
The advantage of Thermit welding is that

All of these
All parts of the weld section are molten at the same time
Weld cools almost uniformly
Results in a minimum problem with internal residual stresses

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Workshop Technology
When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as

Permanent mould casting method
Slush casting method
Die casting method
Centrifugal casting method

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