Manufacturing And Production Technology
A hole is of dimension φ = 9 ₊0⁺⁰∙⁰¹⁵ mm. The corresponding shaft is of dimension φ = 9 ₊0.001⁺⁰∙⁰¹⁰ mm. The resulting assembly has

Transition fit
Close running fit
Interference fit
Loose running fit

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

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
The temperature of solid phase drops from freezing to room temperature

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

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

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