Engine: Retired questions · General Subjects

1. A An outside pressure source is required for lubrication and full-film lubrication is present at any shaft speed.
2. B An outside pressure source is not required for lubrication and full-film lubrication is present only at operational speed.
3. C An outside pressure source is required for lubrication and full-film lubrication is present only at operational speed.
4. D An outside pressure source is not required for lubrication and full-film lubrication is present at any shaft speed.

Tip: press A-D to answer