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 are ideal conditions for evaporative cooling system? |
| A. | Hot and humid conditions |
| B. | Hot and dry conditions |
| C. | Cold and humid conditions |
| D. | Cold and dry conditions |
| Answer» C. Cold and humid conditions | |
| 2. |
Dry ice is the solid form of _____________ |
| A. | carbon dioxide |
| B. | Sulphur dioxide |
| C. | ammonium choride |
| D. | carbontetraoxide |
| Answer» B. Sulphur dioxide | |
| 3. |
In the _____________, an electric current sent through a junction of two dissimilar materials results in either a heating or cooling of the junction. |
| A. | Peltier effect |
| B. | See-beck effect |
| C. | Joule effect |
| D. | Thomson effect |
| Answer» B. See-beck effect | |
| 4. |
The principle of flash cooling is achieved in _______________ |
| A. | thermoelectric refrigeration |
| B. | steam-jet refrigeration |
| C. | evaporative cooling |
| D. | absorption refrigeration |
| Answer» C. evaporative cooling | |
| 5. |
Are these statements about the natural refrigerants true?Statement 1: Propane and isobutene are natural refrigerants.Statement 2: These are produced from nature’s bio-chemical processes. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 6. |
_____________ freezers are used for deep freezing fish fillets. |
| A. | Air blast |
| B. | Slow type |
| C. | Normal |
| D. | Low velocity |
| Answer» B. Slow type | |
| 7. |
___________ is the difference between the boiling point temperature of the refrigerant in the evaporator coil and the actual temperature of the refrigerant gas as it leaves the evaporator. |
| A. | Superheat |
| B. | Critical point |
| C. | Supercool |
| D. | Drastic point |
| Answer» B. Critical point | |
| 8. |
Modern refrigerators usually use a refrigerant called ______________ |
| A. | HFC-134a |
| B. | CFC-134a |
| C. | HFC-1a |
| D. | HC-13a |
| Answer» B. CFC-134a | |
| 9. |
The first ice making machine used brewing was invented by ___________ |
| A. | James Harrison |
| B. | Charles Chamberland |
| C. | Nicolas Appert |
| D. | Clarence Birdseye |
| Answer» B. Charles Chamberland | |
| 10. |
Who designed refrigerator? |
| A. | Oliver Evans |
| B. | Charles Chamberland |
| C. | Nicolas Appert |
| D. | Clarence Birdseye |
| Answer» B. Charles Chamberland | |