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Workshop Technology

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

Compound die
Simple die
Combination die
Progressive die

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Workshop Technology
In piercing operation, the clearance is provided on

Die
Half on the punch and half on the die
Punch
Either on punch or die depending upon designer's choice

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Workshop Technology
A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as

Sand wash
Shift
Swell
Scab

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Workshop Technology
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be

26 mm/m
20 mm/m
16 mm/m
10 mm/m

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Workshop Technology
The teeth of hacksaw blade are bent

Towards right
Towards left
Alternately towards right and left and every third or fourth left straight
May be bent in any direction

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Workshop Technology
The metal is subjected to mechanical working for

Controlling the direction of flow lines
Refining grain size
Reducing original block into desired shape
All of these

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