MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What happens to the drying rate during constant rate of drying period? |
| A. | It reduces |
| B. | It increases |
| C. | Constant |
| D. | Becomes negligible |
| Answer» C. Constant | |
| 2. |
What is drying constant? |
| A. | Mechanisms of heat and mass transport phenomena |
| B. | Mechanism of heat phenomena |
| C. | Mechanism of mass transport phenomena |
| D. | Mechanism of drying phenomena |
| Answer» B. Mechanism of heat phenomena | |
| 3. |
How does humidity affect drying rate? |
| A. | No effect |
| B. | Directly proportional |
| C. | Indirect proportional |
| D. | Linear increase |
| Answer» C. Indirect proportional | |
| 4. |
What type of drying takes place when the food has high fat contents? |
| A. | Slow |
| B. | Fast |
| C. | Constant |
| D. | Quick |
| Answer» B. Fast | |
| 5. |
Name the phenomenon which transfers moisture during second falling drying rate period? |
| A. | Liquid diffusion |
| B. | Capillary movement |
| C. | Vapor diffusion |
| D. | Liquid diffusion, capillary movement, and vapor diffusion. |
| Answer» E. | |
| 6. |
At what stage the case hardening of a material takes place? |
| A. | Constant rate period |
| B. | Falling rate period |
| C. | Initial rate period |
| D. | Equilibrium |
| Answer» B. Falling rate period | |
| 7. |
What is the independent factor of the constant rate period? |
| A. | Moisture content |
| B. | Temperature |
| C. | Pressure |
| D. | Humidity |
| Answer» B. Temperature | |
| 8. |
What happens to the drying rate when it reaches critical moisture content? |
| A. | Declines |
| B. | Increases gradually |
| C. | Stops |
| D. | Becomes constant |
| Answer» B. Increases gradually | |
| 9. |
Which of the following statements are true about drying?Statement 1: Latent heat of vaporization is not necessary.Statement 2: Moisture must be transported out from the food. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» D. False, False | |
| 10. |
Rate of drying depends on which of the following statement?Statement 1: Vapor pressure of water at drying temperature.Statement 2: Vapor pressure in the external environment. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |