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Workshop Technology

Workshop Technology
An oxidising process used for aluminium and magnesium articles is called

Galvanizing
Anodizing
Sherardizing
Parkerising

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Workshop Technology
In sheet metal blanking, shear is provided on punches and dies so that

Warping of sheet is minimized
Press load is reduced
Good cut edge is obtained
Cut blanks is straight

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Workshop Technology
Blanking and piercing operations can be performed simultaneously in a

Compound die
Progressive die
Simple die
Combination die

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Workshop Technology
A sand employed on the faces of the pattern before moulding, is called

Green sand
Loam sand
Parting sand
Dry sand

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Workshop Technology
A two high rolling mill consists of two rolls which rotate

At different speeds and in the opposite direction
At the same speed and in the same direction
At different speeds and in the same direction
At the same speed but in opposite direction

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Workshop Technology
In a centrifugal casting method

No core is used
Core is made of sand
Core is made of ferrous metal
Core is made of nonferrous metal

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