| 21. | Explain how a spaceband is constructed? How should |
| | a spaceband be placed in a line. Why? |
| 22. | How is the spaceband box removed? Explain in detail. |
| 23. | What will cause spacebands not to respond? |
| 24. | How do the spaceband box pawls get their motion to |
| | release the spacebands? Explain in detail. |
| 25. | How are the spaceband box pawls adjusted? |
| 26. | What prevents the release of two spacebands at one |
| | time? How is it adjusted? |
| 27. | Describe how the thermostat controls the temperature |
| | of the metal, and how it is adjusted. |
| 28. | Describe how the metal is heated in an electric pot. |
| | How is the heat controlled in the various heating |
| | units of an electric pot? |
| 29. | What care does the electric pot and controller require? |
| 30. | What care does the mold require? How would you replace |
| | the mold in the disk after having it off? |