The blank diameter used in thread rolling will be

Workshop Technology
The blank diameter used in thread rolling will be

A little larger than the minor diameter of the thread

Equal to minor diameter of the thread

Equal to pitch diameter of the thread

A little larger than the pitch diameter of the thread

A little larger than the minor diameter of the thread

Equal to minor diameter of the thread

Equal to pitch diameter of the thread

A little larger than the pitch diameter of the thread

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Workshop Technology
In average work, the tolerance produced by investment casting method is

+0.2 mm

+1 mm

±0.05 mm

+05 mm

+0.2 mm

+1 mm

±0.05 mm

+05 mm

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Workshop Technology
In permanent mould casting method

Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition

Molten metal is poured and allowed to solidify while the mould is revolving

Molten metal is forced into mould under high pressure

None of these

Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition

Molten metal is poured and allowed to solidify while the mould is revolving

Molten metal is forced into mould under high pressure

None of these

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Workshop Technology
A casting defect which occurs due to improper venting of sand is known as

Shift

Swell

Blow holes

Cold shuts

Shift

Swell

Blow holes

Cold shuts

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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

16 mm/m

10 mm/m

20 mm/m

26 mm/m

16 mm/m

10 mm/m

20 mm/m

26 mm/m

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Workshop Technology
The algebraic difference between the minimum limit and the basic size is called

Actual deviation

Fundamental deviation

Lower deviation

Upper deviation

Actual deviation

Fundamental deviation

Lower deviation

Upper deviation

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Workshop Technology

Workshop Technology The blank diameter used in thread rolling will be

Workshop Technology In average work, the tolerance produced by investment casting method is

Workshop Technology In permanent mould casting method

Workshop Technology A casting defect which occurs due to improper venting of sand is known as

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

Workshop Technology The algebraic difference between the minimum limit and the basic size is called

Workshop Technology
The blank diameter used in thread rolling will be

Workshop Technology
In average work, the tolerance produced by investment casting method is

Workshop Technology
In permanent mould casting method

Workshop Technology
A casting defect which occurs due to improper venting of sand is known as

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

Workshop Technology
The algebraic difference between the minimum limit and the basic size is called