MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What happens when the reaction occurs non-uniformly? |
| A. | High gradient |
| B. | Low gradient |
| C. | Small yield |
| D. | Less conversion |
| Answer» B. Low gradient | |
| 2. |
Heat removal can only be done directly. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
What happens to the velocity of gas, as heat-transfer coefficients increases? |
| A. | Increases |
| B. | Decreases |
| C. | No change |
| D. | None of the mentioned |
| Answer» B. Decreases | |
| 4. |
The shape and size of catalyst is not very important. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
What is meant by ‘Hot gas recycle’? |
| A. | Removal of heat |
| B. | Supplying heat |
| C. | Reflux heat |
| D. | None of the mentioned |
| Answer» B. Supplying heat | |
| 6. |
WHAT_HAPPENS_TO_THE_VELOCITY_OF_GAS,_AS_HEAT-TRANSFER_COEFFICIENTS_INCREASES??$ |
| A. | Increases |
| B. | Decreases |
| C. | No change |
| D. | None of the mentioned |
| Answer» B. Decreases | |
| 7. |
What happens when the reaction occurs non-uniformly?$ |
| A. | High gradient |
| B. | Low gradient |
| C. | Small yield |
| D. | Less conversion |
| Answer» B. Low gradient | |
| 8. |
Heat removal can only be done directly.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Lower gradients ensure better temperature control. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
The shape and size of catalyst is not very important? |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
What is meant by ‘Hot gas recycle’?$ |
| A. | Removal of heat |
| B. | Supplying heat |
| C. | Reflux heat |
| D. | None of the mentioned |
| Answer» B. Supplying heat | |
| 12. |
Which synthesis process is similar to catalytic cracking of hydrocarbons? |
| A. | Slurry process |
| B. | German fixed-bed |
| C. | Oil circulation |
| D. | Fluid bed process |
| Answer» E. | |
| 13. |
What is the size of particles in Oil circulation? |
| A. | Fine particles |
| B. | Moderate size |
| C. | Large size |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 14. |
The oil-circulation process is similar to which process? |
| A. | Slurry process |
| B. | German fixed-bed process |
| C. | Both of the mentioned |
| D. | None of the mentioned |
| Answer» C. Both of the mentioned | |
| 15. |
What does slurry consists of? |
| A. | Fine particles |
| B. | Pulverized particles |
| C. | Large particles |
| D. | All of the mentioned |
| Answer» C. Large particles | |
| 16. |
Synthesis with a slurried catalyst has been investigated in which type of plants? |
| A. | Small |
| B. | Moderate |
| C. | Large |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 17. |
What is the drawback if German fixed-bed reactor? |
| A. | Heat removal |
| B. | High contact area |
| C. | High cost |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 18. |
What is/are the application of German fixed-bed reactor? |
| A. | Heat removal |
| B. | Complex design |
| C. | Low capacity |
| D. | All of the mentioned |
| Answer» E. | |