MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Mass Transfer knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
After critical moisture content _________ starts. |
| A. | Saturated drying region |
| B. | Unsaturated drying region |
| C. | Constant drying region |
| D. | None of the mentioned |
| Answer» C. Constant drying region | |
| 2. |
If the dry spot appears in the substance in the batch drying curve at ___________ |
| A. | Critical moisture content |
| B. | Equilibrium moisture content |
| C. | Bound moisture |
| D. | Unbound moisture |
| Answer» B. Equilibrium moisture content | |
| 3. |
The value of _________ remains constant while drying if speed and direction of gas flow never change. |
| A. | Mass transfer co-efficient |
| B. | Humidity |
| C. | Moisture |
| D. | None of the mentioned |
| Answer» B. Humidity | |
| 4. |
Find the gas phase mass transfer co-efficient for a unbound moisture to remove if the flux is 5 kg/sq.m sec and the difference in humidity of the liquid and the main stream is 0.5 units. |
| A. | 5 |
| B. | 10 |
| C. | 20 |
| D. | 30 |
| Answer» C. 20 | |
| 5. |
The other part than the constant rate period in the Batch- Drying curve is falling rate period. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Calculate the flux (kg/sq.m sec) ifMass of dry solid = 8 kg; Wet surface area = 4 sq.m; Change in moisture content with time is 0.4 /sec; |
| A. | 0.4 |
| B. | 0.6 |
| C. | 0.8 |
| D. | 0.9 |
| Answer» D. 0.9 | |