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Workshop Technology

Workshop Technology
The increase in hardness due to cold working, is called

Age hardening
Work hardening
Induction hardening
Flame hardening

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

50°-60°
40°-50°
60°-70°
30°-40°

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Workshop Technology
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

Less than 0.1 percent
Anywhere between 0.1 to 1 percent
More than 0.3 percent
Less than 0.3 percent

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Workshop Technology
In order to produce uniform packing of sand in the moulds, a _________ is used.

Sand slinger
Stripper plate machine
Squeezing machine
Jolt machine

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Workshop Technology
Cast iron and steel pipes are produced by

True centrifugal casting
Investment casting
Die casting
Slush casting

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Workshop Technology
Thermit, used in Thermit welding, is a mixture of

Charcoal, iron oxide and aluminium
Charcoal and iron oxide
Charcoal and aluminium
Iron oxide and aluminium

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