MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
Is crystallization a chemical change? |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
What are factors affecting crystallization? |
| A. | Degree of agglomeration |
| B. | Crystal shape |
| C. | Particle size distribution |
| D. | Particle size distribution, crystal shape, degree of agglomeration |
| Answer» E. | |
| 3. |
Why is a supersaturated solution unstable? |
| A. | Concentration is higher than equilibrium concentration |
| B. | Concentration is lower than equilibrium concentration |
| C. | Concentration is equal to equilibrium concentration |
| D. | Contains impurities |
| Answer» B. Concentration is lower than equilibrium concentration | |
| 4. |
What are crystallization techniques? |
| A. | Gradual cooling and diffusion |
| B. | Diffusion and sharp cooling |
| C. | Gradual cooling and sharp cooling |
| D. | Sharp cooling and crystallization |
| Answer» B. Diffusion and sharp cooling | |
| 5. |
How does concentration affect crystallization? |
| A. | Increase in concentration leads to large crystals |
| B. | Decrease in concentration leads to large crystals |
| C. | Increase in concentration leads to small crystals |
| D. | Decrease in concentration leads to small crystals |
| Answer» B. Decrease in concentration leads to large crystals | |
| 6. |
What is purpose of recrystallization? |
| A. | To purify chemicals |
| B. | To dissolve crystals |
| C. | Continuous process of crystallization |
| D. | To clean crystallizers |
| Answer» B. To dissolve crystals | |
| 7. |
Which of the following is crystallization? |
| A. | Solid-solid separation |
| B. | Solid-liquid separation |
| C. | solid-gas separation |
| D. | Liquid- gas separation |
| Answer» C. solid-gas separation | |
| 8. |
When is supersaturation attained? |
| A. | When the solvent contains more solute |
| B. | When the solute contains more solvent |
| C. | When the solvent contains less solute |
| D. | When the solute contains less solvent |
| Answer» B. When the solute contains more solvent | |
| 9. |
What is meant by crystallization? |
| A. | Concentration of atoms into a highly structured form |
| B. | Solidification of atoms into a highly structured form |
| C. | Solidification of solution |
| D. | Concentration of solution |
| Answer» C. Solidification of solution | |