MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Reaction Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Effect of flow type on reactor performance when the conversion is small. |
| A. | no effect |
| B. | cannot be determined |
| C. | very small |
| D. | very large |
| Answer» D. very large | |
| 2. |
Four MFR s are operated in series the total space time is 5 minutes. If it is replaced by a single PFR, What will be the space time? First order reaction with rate constant 2 min-1, concentration reduces from 50 to 10 mol/m3. |
| A. | 0.805 |
| B. | 0.123 |
| C. | 0562 |
| D. | 0.439 |
| Answer» B. 0.123 | |
| 3. |
Best arrangement of reactors for a reaction whose rate-concentration curve that rises monotonically. |
| A. | Plug, Large MFR, Small MFR |
| B. | Plug, Small MFR, Large MFR |
| C. | Large MFR, Small MFR, Plug |
| D. | Small MFR, Plug, Large MFR |
| Answer» C. Large MFR, Small MFR, Plug | |
| 4. |
Graphical procedure for finding conversion in MFR s of different sizes in series is called ______ method. |
| A. | Newton s |
| B. | Wheeler s |
| C. | Octaves |
| D. | Jones |
| Answer» E. | |
| 5. |
How should a PFR and MFR be connected to maximize production from a first order reaction? |
| A. | MFR followed by PFR |
| B. | PFR followed by MFR |
| C. | Any arrangement |
| D. | MFR and PFR should not be connected |
| Answer» D. MFR and PFR should not be connected | |
| 6. |
For all positive reaction orders and any particular duty the MFR is always larger than the PFR. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
How should the two MFR s of unequal size be connected in series to maximize production for a first order homogenous reaction? |
| A. | Smaller MFR followed by larger MFR |
| B. | Larger MFR followed by smaller MFR |
| C. | Any arrangement |
| D. | MFR s should not be connected in series |
| Answer» D. MFR s should not be connected in series | |