| What statement is true concerning the hydrostatic lubrication of plain bearings? |
| A) An outside pressure source is required for lubrication and full-film lubrication is present at any shaft speed. |
| B) An outside pressure source is not required for lubrication and full-film lubrication is present only at operational speed. |
| C) An outside pressure source is required for lubrication and full-film lubrication is present only at operational speed. |
| D) An outside pressure source is not required for lubrication and full-film lubrication is present at any shaft speed. |
