Manufacturing And Production Technology
In machining metals, surface roughness is due to

Fragment of built-up edge on the machined surface
All of these
Feed marks or ridges left by the cutting tool
Cutting tool vibrations

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

The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool
Frequently, more than one cutting edges are in action
All of these
The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge

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