Manufacturing And Production Technology
Which of the following statement is wrong about ultrasonic machining?

It is best suited for machining hard and brittle materials.
It produces good surface finish
It cuts materials at very slow speeds
It removes large amount of material

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Manufacturing And Production Technology
Which of the following statement is correct for orthogonal cutting system?

The cutting edge of the tool is perpendicular to the direction of tool travel
The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge
All of these
The cutting edge clears the width of the workpiece on either ends

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