Solution:

1. The height of the centers measured from the lathe bed.

2. The swing diameter over bed. This is the largest diameter of work that will revolve without touching the bed and is twice the height of the centre measured from the bed of the lathe.

3. The length between centers. This is the maximum length of work that can be mounted between the lathe centers.

4. The swing diameter over carriage. This is the largest diameter of work that will revolve over the lathe saddle, and is always less than the swing diameter over bed.

5. The maximum bar diameter. This is the maximum diameter of bar stock that will pass through hole of the headstock spindle.

6. The length of bed. This indicates the approximate floor space occupied by the lathe.