Match the following:
| Group I (Mechanism) | Group II (Machines) |
| P. Quick return | 1 Lathe |
| Q. Apron | 2 Shaping |
| R. Intermittent indexing | 3 Gear hobbing |
| S. Differential mechanism | 4 Milling |
1
P1-Q2-R4-S3
2
P2-Q1-R4-S3
3
P4-Q1-R2-S3
4
P2-Q3-R1-S4
Match the following:
| Group I (Mechanism) | Group II (Machines) |
| P. Quick return | 1 Lathe |
| Q. Apron | 2 Shaping |
| R. Intermittent indexing | 3 Gear hobbing |
| S. Differential mechanism | 4 Milling |