MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Extremely small packing is favorable for packed towers as the surface area increases. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Agitator vessels are taller than bubble columns. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following is true about an agitator vessel? |
| A. | Small bubbles have a high interfacial area |
| B. | Bubbles in an agitator vessel are small |
| C. | Small bubbles have a lower rise velocity |
| D. | All of the mentioned |
| Answer» E. | |
| 4. |
How does the solubility of carbon-di-oxide in coke increase when it is subjected to high pressure? |
| A. | Interfacial area increases |
| B. | Pressure drop decreases |
| C. | It shifts the equilibrium to a higher side |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 5. |
To increase the solubility of carbon-di-oxide in coke, it is subjected to high pressure. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Statement 1: Packed towers are used for physical absorption.Statement 2: Agitated vessels are used for physical absorption. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» B. True, True | |
| 7. |
Which of the following statements is correct with respect to gas absorption? |
| A. | Sufficient contact time plays an important role in absorption |
| B. | Adequate contact area plays an important role in absorption |
| C. | Contact time becomes irrelevant after equilibrium and only the interfacial area plays a crucial role |
| D. | All of the mentioned |
| Answer» E. | |
| 8. |
_____ gives the relationship between the concentration of gas entering stage n and concentration of liquid leaving stage n. |
| A. | Equilibrium curve |
| B. | Operating line |
| C. | Equilibrium line |
| D. | None of the mentioned |
| Answer» C. Equilibrium line | |
| 9. |
Statement 1: Vapor phase is always more of volatile components.Statement 2: Liquid phase is always more of high boiling point liquids. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 10. |
When there is a mixture of liquids present, the boiling point lies between the boiling points of both the components. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Statement 1: Rectification involves the liquid and vapors to pass a cascade of stages.Statement 2: In rectification, both heat and mass transfer takes place till equilibrium is reached. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 12. |
When the mass balance in a distillation column is F = B + D, how can D that is the distillate be increased? |
| A. | Decreasing vacuum in distillation unit |
| B. | Increase vacuum in distillation unit |
| C. | None of the mentioned |
| D. | Increasing & Decreasing vacuum in distillation unit |
| Answer» C. None of the mentioned | |
| 13. |
This method is used in food processing for removal of bad odours from food. |
| A. | Flash distillation |
| B. | Steam distillation |
| C. | Batch distillation |
| D. | Gas adsorption |
| Answer» C. Batch distillation | |
| 14. |
Out of the limited applications of distillation in the food industry, which of the following is an application? |
| A. | Use in brewer industry |
| B. | Use in solvent recovery industry |
| C. | Use in steam distillation |
| D. | All of the mentioned |
| Answer» E. | |
| 15. |
Statement 1: Distillation is not used very widely in the food industry.Statement 2: Steam distillation can be done when the volatile component is not miscible in water. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |