MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
Which of the following is not a disadvantage of Fluidized bed granulator? |
| A. | A fluidized bed granulator cannot be efficiently used in a batch process |
| B. | A fluidized bed granulator has a long resident time |
| C. | A fluidized bed granulator cannot be automated |
| D. | A fluidized bed granulator produces low density granules |
| Answer» D. A fluidized bed granulator produces low density granules | |
| 2. |
Which of the following is not an application of fluidization? |
| A. | Fluidized bed tunnels are used for large food products |
| B. | Fluidized bed coater is used for making barrier films on tablets |
| C. | Fluidized beds are used in catalytic processes |
| D. | Fluidized bed dryers are used for drying powders |
| Answer» B. Fluidized bed coater is used for making barrier films on tablets | |
| 3. |
Which of the following is a modified fluidized bed dryer? |
| A. | Plug flow fluidized bed dryer |
| B. | Semi-continuous fluidized bed dryer |
| C. | Hybrid fluidized bed dryer |
| D. | Batch fluidized bed dryers |
| Answer» D. Batch fluidized bed dryers | |
| 4. |
Which of the following is a disadvantage of fluidized dryers? |
| A. | High maintenance cost |
| B. | High pressure drop |
| C. | Low thermal efficiency |
| D. | Low rates of moisture removal |
| Answer» C. Low thermal efficiency | |
| 5. |
Which of the following is not an apparatus parameter in fluidized bed dryer? |
| A. | Size of distributor plate |
| B. | Position of distributor plate |
| C. | Shape of the equipment |
| D. | Height of nozzle |
| Answer» B. Position of distributor plate | |
| 6. |
Which of the following parameters does not need to be controlled in a fluidized bed dryer? |
| A. | Apparatus parameters |
| B. | Product parameters |
| C. | Process parameters |
| D. | Raw material parameters |
| Answer» E. | |
| 7. |
Which of the following is not true about Fischer process? |
| A. | Low temperature Fischer-Tropsch process uses fluidized beds |
| B. | High temperature Fischer-Tropsch process uses fluidized catalysts |
| C. | Cobalt is not suitable for high temperature Fischer Tropsch process |
| D. | The commercial Fischer Tropsch process uses iron based catalyst |
| Answer» B. High temperature Fischer-Tropsch process uses fluidized catalysts | |
| 8. |
Which of the following is false about fluidized bed catalytic cracking? |
| A. | It cracks longer molecules into shorter compounds |
| B. | Catalytic reactions in the catalytic riser take 2-4 seconds to complete |
| C. | Stacked configuration covers more space than side-to-side configuration |
| D. | Carbon produced during cracking gets deposited on the catalyst |
| Answer» D. Carbon produced during cracking gets deposited on the catalyst | |
| 9. |
Which of the following is true about fluidized beds? |
| A. | Intense mixing leads to non-uniform temperature |
| B. | Fluidized solids can be easily transferred from one reactor to another |
| C. | Heat transfer in a fluidized bed is moderate |
| D. | Heat exchangers are present over the circumference of the fluidized bed |
| Answer» C. Heat transfer in a fluidized bed is moderate | |