Chemical Engineering Sample Exams: For the New Breadth/Depth Exams, First Edition

AFTERNOON SAMPLE EXAMINATION
Instructions for afternoon Session
You have four hours to work on the afternoon session. Do not write in this handbook.
Answer all forty questions for a total of forty answers. There is no penalty for guessing.
Work rapidly and use your time effectively. If you do not know the correct answer, skip it and return to it later.
Some problems are presented in both metric and English units. Solve either problem.
Mark your answer sheet carefully. Fill in the answer space completely. No marks on the workbook will be evaluated. Multiple answers receive no credit. If you make a mistake, erase completely.
Work all 40 problems in four hours.
AA1 to AA4: The table below is an extract from the files of a process engineer's calculations for the discharge side of a pump.
| Max flow Branch | Normal flow Branch | Minimum flow Branch | |||||
|---|---|---|---|---|---|---|---|
| #1 | #2 | #1 | #2 | #1 | #2 | ||
| Flow | m 3/h | 12.5 | 17.4 | 10.2 | 14.5 | 4.2 | 5.8 |
| Delivery pressure | kg/cm 2 a | 2.0 | 3.5 | 2.0 | 3.5 | 2.0 | 3.5 |
| Static head | kg/cm 2 a | 3.72 | 0.00 | 3.72 | 0.00 | 3.72 | 0.00 |
| Line losses | kg/cm 2 | 0.81 | 0.56 | 0.42 | 0.09 | 0.07 | |
| equipment losses | kg/cm 2 | 0.61 | 0.42 | 1.68 | 0.05 | 0.27 | |
| Control valve ? P | kg/cm 2 | 0.75 | 1.19 | 2.03 | |||
| Discharge Pressure | kg/cm 2 a | 7.89 | 7.89 | 7.89 | 7.89 | 7.89 | 7.89 |
| Suction pressure | kg/cm 2 |