Question

Surfaces produced by straight and cylindrical grinding tools tend to create which type of roughness?

(a) Regularly spaced but directional roughness

(b) Regularly spaced but non directional roughness

(c) Irregularly spaced but directional roughness

(d) Irregularly spaced but non directional roughness

I had been asked this question in quiz.

My question is from Surface Roughness topic in section Measurement of Surface Finish of Engineering Metrology

Answer 1

The correct choice is (c) Irregularly spaced but directional roughness

The explanation is: The roughness on the surface tends to be both irregularly spaced and directional in straight and cylindrical grinding and in the case of boring or lapping process the surface roughness tends to be irregular and non-directional in nature.