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Workshop Technology

Workshop Technology
Which one of the following material will require the largest size of riser for the same size of casting?

Copper
Steel
Cast iron
Aluminium

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Workshop Technology
The electron beam welding can be carried out in

Vacuum
A pressurized inert gas chamber
Open air
A shielded gas environment

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Workshop Technology
The operation of straightening a curved sheet metal, is known as

Squeezing
Drawing
Coining
Planishing

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Workshop Technology
During cold working process

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

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Workshop Technology
A pattern maker's shrinkage rule considers

All pattern allowances
All materials to be cast
Only shrinkage allowance
All materials of the pattern

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Workshop Technology
The operation of cutting of a flat sheet to the desired shape is called

Blanking
Piercing
Punching
Shearing

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