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. |
Statement 1: In counter-current extraction, equilibrium is reached at every stage.Statement 2: Right angled triangle method also called a difference point method is used to calculate the ideal number of stages for extraction. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 2. |
_____ is the diagonal of the x-y diagram. |
| A. | Operating line |
| B. | Equilibrium line |
| C. | Equilibrium curve |
| D. | None of the mentioned |
| Answer» C. Equilibrium curve | |
| 3. |
Statement 1: Multi-stage cross-current extraction – the solids contain some amount of solute after every extraction.Statement 2: Single-stage batch extractor – Used in labs and not on large scale as a solvent is continuously subjected to heat. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» D. False, True | |
| 4. |
Multi-stage counter-current extraction is expensive as more extractors are needed to strip the solid off the solvent. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which among the following factors does NOT affect extraction? |
| A. | Solubility of solute in the solvent |
| B. | Degree of agitation |
| C. | Concentration difference |
| D. | None of the mentioned |
| Answer» E. | |
| 6. |
Statement 1: Partition coefficient pertains to solid-liquid extraction.Statement 2: Leaching involves both heat and mass transfer. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» D. False, True | |
| 7. |
Oil seed cakes are obtained by _____ |
| A. | Solvent extraction |
| B. | Mechanical pressing |
| C. | None of the mentioned |
| D. | Solvent extraction & Mechanical pressing |
| Answer» C. None of the mentioned | |
| 8. |
Statement 1: Soya bean has a high oil content.Statement 2: If the oil content is high, extraction is done by solvent extraction alone. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» D. False, True | |
| 9. |
If extraction is done at the _____ of the solvent, it is called _____ |
| A. | Melting point, decoction |
| B. | Boiling point, decoction |
| C. | Melting point, leaching |
| D. | Boiling point, leaching |
| Answer» C. Melting point, leaching | |
| 10. |
Liquid-liquid extraction is called leaching. |
| A. | True |
| B. | False |
| Answer» C. | |