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Workshop Technology

Workshop Technology
A casting defect which results in general enlargement of a casting is known as

Scab
Sand wash
Swell
Shift

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Workshop Technology
Green sand is a mixture of

30% sand and 70% clay
70% sand and 30% clay
50% sand and 50% clay
90% sand and 10% clay

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Workshop Technology
A hacksaw blade cuts on the

Forward stroke
Cutting depends upon the direction of force
Return stroke
Both forward and return strokes

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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

Shift
Swell
Sand wash
Scab

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

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

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Workshop Technology
The centrifugal casting method, is used for casting articles of

Symmetrical shape about vertical axis
Irregular shape
Symmetrical shape about horizontal axis
Nonferrous metal only

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