MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Fluidization Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which new term is utilized for measuring non spherical particles? |
| A. | Sphericity |
| B. | Volume displacement |
| C. | Geometry |
| D. | None of the mentioned |
| Answer» B. Volume displacement | |
| 2. |
Which factor is considered in Ergun equation when the Reynolds number is greater than 1000? |
| A. | 150 |
| B. | 1.75 |
| C. | 2.75 |
| D. | 250 |
| Answer» C. 2.75 | |
| 3. |
Which factor is considered in Ergun equation when the Reynolds number is less 20? |
| A. | 150 |
| B. | 1.75 |
| C. | 2.75 |
| D. | 250 |
| Answer» B. 1.75 | |
| 4. |
The pressure drop through the fixed beds of uniformly sized solids has been correlated by ________ |
| A. | Ergun equation |
| B. | Poisson equation |
| C. | Laplace equation |
| D. | None of the mentioned |
| Answer» B. Poisson equation | |
| 5. |
According to Brown, fractional voids in the packed bed are related to ___________ of particles? |
| A. | Shape |
| B. | Size |
| C. | Sphericity |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 6. |
What is the relationship between sphericity and voidage? |
| A. | Sphericity=(6(1-voidage))/(a*dp) |
| B. | Voidage=(6(1-sphericity))/(a*dp) |
| C. | Sphericity=(6*voidage)/(a*dp) |
| D. | Voidage=(6*sphericity)/(a*dp) |
| Answer» B. Voidage=(6(1-sphericity))/(a*dp) | |
| 7. |
What does + sign mean in the following expression: 150 + 200 mesh particles? |
| A. | Pass through 200 |
| B. | Retained on 200 |
| C. | Retained on 150 |
| D. | None of the mentioned |
| Answer» C. Retained on 150 | |
| 8. |
What does - sign mean in the following expression: 150 + 200 mesh particles? |
| A. | Pass through 150 |
| B. | Doesnt pass through 150 |
| C. | Pass through 200 |
| D. | None of the mentioned |
| Answer» B. Doesnt pass through 150 | |
| 9. |
What are the methods used for measuring particles of size < 0.04mm? |
| A. | Settling rate |
| B. | Brownian movement |
| C. | Sieve analysis |
| D. | All of the mentioned |
| Answer» E. | |
| 10. |
What are the methods for measuring large particles of size above 5mm? |
| A. | Calliper |
| B. | Micrometer |
| C. | Sieves |
| D. | All of the mentioned |
| Answer» E. | |