Manufacturing And Production Technology
When the temperature of a solid metal increases,

Both strength and ductility of the metal increases
Both strength and ductility of the metal decreases
Strength of the metal increases but ductility decreases
Strength of the metal decreases but ductility increases

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Manufacturing And Production Technology
The snag grinding is done

To grind exterior cylindrical surfaces
Any one of the above
To remove considerable amount of metal without regard to accuracy of the finished surface
To produce good surface finish and high degree of accuracy

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Manufacturing And Production Technology
In a shaper, the length of stroke is increased by

Increasing the length of the arm
Decreasing the centre distance of bull gear and crank pin
Decreasing the length of the slot in the slotted lever
Increasing the centre distance of bull gear and crank pin

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Manufacturing And Production Technology
Shrinkage allowance on pattern is provided to compensate for shrinkage when

The temperature of solid phase drops from freezing to room temperature
The temperature of liquid metal drops from pouring to freezing temperature
The metal changes from liquid to solid state at freezing temperature
The temperature of metal drops from pouring to room temperature

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