To get good surface finish on a turned job, one should

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To get good surface finish on a turned job, one should use a sharp tool with... feed rate and... speed of rotation of the job.

1. Higher speed for higher heat dissipation
2. Higher speed for Low heat dissipation
3. Low speed for Low heat dissipation
4. Low speed for Higher heat dissipation

Correct Option: A

Small feed rate

H_max =	f²
	8R

H_max ↑ f ↑
Higher speed for higher heat dissipation.