Match the following parts of a cam to their descriptions.
| Column I | Column II | ||
| 1. | Pitch curve | A. | The smallest circle from the cam centre through the cam profile curve. |
| 2. | Pitch circle | B. | The path traced by the follower as it is rotated by a stationary cam |
| 3. | Working curve | C. | The smallest circle from the cam centre through the pitch curve. |
| 4. | Prime circle | D. | The surface of cam in contact with the follower. |
| 5. | Working circle | E. | Used to calculate a cam of minimum size for a given pressure angle. |
1
1 - D, 2 - B ,3 - A, 4 - E, 5 - C
2
1 - B, 2 - E, 3 - D, 4 - C, 5 - A
3
1 - D, 2 - A, 3 - B, 4 - C, 5 - E
4
1 - B, 2 - D, 3 - E, 4 - A, 5 - C