| No | Title | ID | 5. FileType | 9. Subtopic | 10. Topic | 11. Reference: | 8. Minor Subject | 12. Subject |
| 699210 | Absorption tower | 1043 | Sample Exam | Absorption tower | Absorption tower | NCEES | Absorption tower | Mass Transfer |
| 699211 | Absorption tower | 1044 | Sample Exam | Absorption tower | Absorption tower | NCEES | Absorption tower | Fluid Dynamics |