Manufacturing And Production Technology
During normalizing process of steel, the specimen is heated

Between the upper and lower critical temperature and cooled in furnace.
Between the upper and lower critical temperature and cooled in still air.
Above the upper critical temperature and cooled in furnace.
Above the upper critical temperature and cooled in still air.

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Manufacturing And Production Technology
Which of the following statement is correct in regard to centreless grinding?

The workpiece is supported throughout its entire length as grinding takes place
All of these
It requires no holding device for the work
It is a continuous process and adopted for production work

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