1. Improves considerably
2. Improves slightly
3. Remains same
4. None of these
Improves slightly
1. Maximum at middle
2. Maximum at sides
3. Maximum in middle
4. Uniform throughout
Maximum at middle
1. Cutting speed
2. Depth of cut
3. Feed-rate
4. Lubricant
Feed-rate
1. 00 to 30
2. 30 to 100
3. 100 to 150
4. 150 to 250
30 to 100
1. Permit chip formation
2. Easy flow of chips
3. Strain harden the material
4. Strengthen the tool
Strain harden the material
1. Start a cut from tailstock and cut toward the headstock
2. Start facing at the centre and cut outward
3. Both (a) and (b)
4. None of these
Both (a) and (b)
1. Left hand type
2. Right hand type
3. Any one of the above two
4. Depends on cutting angles and tool material
Left hand type
1. Avoid work from rubbing against tool
2. Control chip flow
3. Strengthen tool edge
4. Break chips
Control chip flow
1. 30 - 50
2. 50 - 80
3. 80 - 120
4. 120 - 150
30 - 50
1. Mild steel
2. Cast iron
3. Free machining steels
4. Aluminium alloys
Aluminium alloys