MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In plate evaporator, the heat transfer coefficient is high in spite of low residence time because _____ |
| A. | It deals with high viscosity food items |
| B. | It is economic |
| C. | Feed is made to pass as thin film |
| D. | All of the mentioned reasons |
| Answer» D. All of the mentioned reasons | |
| 2. |
In flashing of jams, the temperature of concentrated jam _____ on flashing. Also, the vapor pressure of the concentrated jam _____ |
| A. | Decreases, sustains combustion |
| B. | Increases, sustains combustion |
| C. | Decreases, does NOT sustain combustion |
| D. | Increases, does NOT sustain combustion |
| Answer» B. Increases, sustains combustion | |
| 3. |
Desolventization which is done in certain evaporators is more similar to distillation than evaporation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
A major reason as to why evaporators and their selection for different applications in the food industry is very important is because ______ |
| A. | Organoleptic characteristics of food is very important |
| B. | Many food items are heat sensitive |
| C. | Majority of them have high moisture content |
| D. | All of the mentioned reasons |
| Answer» E. | |
| 5. |
Industry A is low on budget and is used in the sugar industry. Industry B wants to invest in a good evaporator. They are needed for meat extracts. Which evaporators will you suggest for each of them? |
| A. | Forced circulation evaporator, forced circulation evaporator |
| B. | Rising film evaporator forced circulation evaporator |
| C. | Forced circulation evaporator, rising film evaporator |
| D. | Rising film evaporator, rising film evaporator |
| Answer» C. Forced circulation evaporator, rising film evaporator | |
| 6. |
Statement 1: Scraped surface evaporators are used in the dairy industry.Statement 2: Plate evaporators can be used for viscous liquids. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» D. False, True | |
| 7. |
Plate evaporators are used in recovering aroma from fruit juices. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
In a rising film evaporator, the temperature difference need not be as high as that in a falling film evaporator. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Statement 1: In a rising film evaporator, the feed can be very viscous.Statement 2: In a rising film evaporator, the feed cannot be heat sensitive. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» D. False, True | |
| 10. |
Statement 1: Horizontal tube evaporator is easy for cleaning.Statement 2: Horizontal tube evaporator has a disadvantage of hindering agitation of the feed. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |