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Workshop Technology

Workshop Technology
In backhand welding, the angle between the welding rod and the work is ___ as compared to forehand welding.

Same
More
Less
None of the listed here

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Workshop Technology
The advantage of Thermit welding is that

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

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Workshop Technology
The oxyacetylene gas used in gas welding produce a flame temperature of

1800°C
2100°C
2400°C
3200°C

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

Rough file
Smooth file
Second cut file
Bastard file

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Workshop Technology
In backhand welding, the angle between the welding torch and the work is kept as

50°-60°
40°-50°
60°-70°
30°-40°

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Workshop Technology
Cast iron and steel pipes are produced by

Investment casting
Die casting
Slush casting
True centrifugal casting

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