MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When _______ occurs below a critical power input the gas bubbles are not affected laterally but move upward. |
| A. | Weeping |
| B. | Flooding |
| C. | Mixing |
| D. | Entrainment |
| Answer» C. Mixing | |
| 2. |
Mixing of liquids and suspension of solids may be accomplished by ______ |
| A. | Dryer |
| B. | Sparger |
| C. | Clamper |
| D. | Bolder |
| Answer» C. Clamper | |
| 3. |
What is the unit of dimensional constant? |
| A. | lb. ft. / lb. force sec |
| B. | lb. ft. / lb. force sec2 |
| C. | lb. ft. / lb. force sec-1 |
| D. | lb. ft2. / lb. force sec |
| Answer» C. lb. ft. / lb. force sec-1 | |
| 4. |
What does the below equation represent?ub = 0.7√(gDb ) |
| A. | Bed velocity |
| B. | Bubble velocity |
| C. | Bank velocity |
| D. | Bishop velocity |
| Answer» C. Bank velocity | |
| 5. |
RADIAL_FORCE?$ |
| A. | Drag force |
| B. | Final force |
| C. | Diagonal force |
| Answer» C. Diagonal force | |
| 6. |
Final velocity |
| A. | Approach velocity |
| B. | Carry velocity |
| C. | Critical velocity |
| Answer» C. Critical velocity | |
| 7. |
What are the velocities of pneumatic conveying? |
| A. | 45 to 60 m/s |
| B. | 50 to 45 m/s |
| C. | 15 to 30 m/s |
| D. | 1 to 10 m/s |
| Answer» D. 1 to 10 m/s | |
| 8. |
At what temperature fluidized bed operates? |
| A. | 1075 to 1225 K |
| B. | 555 to 4555 K |
| C. | 100 to 500 K |
| D. | 500 to 1500 K |
| Answer» B. 555 to 4555 K | |
| 9. |
What does the below equation represent? |
| A. | |
| B. | Bed velocity |
| C. | Bubble velocity |
| D. | Bank velocity |
| Answer» C. Bubble velocity | |
| 10. |
If a small diameter column is used with deep bed through solids, this is called _____ |
| A. | Sledging |
| B. | Slugging |
| C. | Skipping |
| D. | Centering |
| Answer» C. Skipping | |