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

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

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Manufacturing And Production Technology
Lapping is an operation of

Smoothing and squaring the surface around a hole
Making a cone-shaped enlargement of the end of a hole
Sizing and finishing a small diameter hole
Producing a hole by removing metal along the circumference of a hollow cutting tool

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