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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.

Less
Same
More
None of the listed here

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

30°-40°
40°-50°
50°-60°
60°-70°

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Workshop Technology
In forehand welding, the angle between the welding rod and the work is kept as

30°-40°
60°-70°
40°-50°
50°-60°

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Workshop Technology
Cast iron and steel pipes are produced by

Die casting
True centrifugal casting
Investment casting
Slush casting

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Workshop Technology
The surface to be machined is marked on the pattern by

Yellow colour
Blue colour
Black colour
Red colour

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Workshop Technology
During cold working process

All of the listed here
Strength and hardness of metal increases
Grain structure is distorted
Close dimensional tolerance can be maintained

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