railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Metrology and Inspection Surface Roughness
The value of surface roughness ‘h’ obtained during the turning operation at a feed ‘f’ with a round nose tool having radius ‘r’ is given by
1
f2/4r
2
f2/8r
3
f2/12r
4
f2/16r