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 metal drops from pouring 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

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology
Threading is an operation of

Cutting helical grooves on the external cylindrical surface
Smoothing and squaring the surface around a hole
Producing a hole by removing metal along the circumference of a hollow cutting tool
Sizing and finishing a small diameter hole

ANSWER DOWNLOAD EXAMIANS APP