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 is the relationship between equilibrium moisture content (EMC) and free moisture content (FMC)? |
| A. | FMC=Total water content -EMC |
| B. | FMC=Total water content + EMC |
| C. | FMC=Total water content EMC |
| D. | Total water content = EMC FMC |
| Answer» B. FMC=Total water content + EMC | |
| 2. |
The __________ helps to decide the stability of food at particular moisture content in the given environment. |
| A. | equilibrium moisture content |
| B. | psychometric charts |
| C. | equilibrium moisture content and psychometric charts |
| D. | chemical properties and psychometric charts |
| Answer» B. psychometric charts | |
| 3. |
Harkins-Jura equation does not predict satisfactory EMC values when relative humidity is __________ |
| A. | more than 30% |
| B. | more than 40% |
| C. | more than 50% |
| D. | more than 60% |
| Answer» B. more than 40% | |
| 4. |
__________ equation is based on potential field theory. |
| A. | Kelvin |
| B. | Harkins-Jura |
| C. | Chung-Pfost |
| D. | Henderson |
| Answer» D. Henderson | |
| 5. |
Which of the following statements about moisture sorption isotherms are correct?
|
| A. | nStatement 2: Water activity always increases as moisture content increases. |
| B. | True, False |
| C. | True, True |
| D. | False, True |
| E. | False, False |
| Answer» C. True, True | |
| 6. |
__________ was used to describe relationship between the water activity and equilibrium moisture content. |
| A. | Kelvin model |
| B. | Harkins-Jura model |
| C. | Chung-Pfost model |
| D. | GAB model |
| Answer» E. | |
| 7. |
What is hysteresis effect? |
| A. | Difference between desorption and adsorption curve |
| B. | Difference between desorption and absorption curve |
| C. | Difference between relative humidity and adsorption curve |
| D. | Difference between relative humidity and absorption curve |
| Answer» B. Difference between desorption and absorption curve | |
| 8. |
The _______is the average material moisture content at which the drying rate begins to decline. |
| A. | critical moisture content |
| B. | equilibrium moisture content |
| C. | free moisture content |
| D. | bound moisture content |
| Answer» B. equilibrium moisture content | |
| 9. |
Henderson equation is based on ______ |
| A. | gibbs adsorption |
| B. | enthalpy |
| C. | latent heat |
| D. | entropy |
| Answer» B. enthalpy | |
| 10. |
The capillary condensation theory plays a major role in ________ equation. |
| A. | Kelvin |
| B. | Harkins-Jura |
| C. | Chung-Pfost |
| D. | Henderson |
| Answer» B. Harkins-Jura | |