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 type of fluid is alcohol? |
| A. | Thixotropy |
| B. | Rheopexy fluids |
| C. | Non- Newtonian fluid |
| D. | Newtonian fluid |
| Answer» E. | |
| 2. |
Laminar flow and turbulent flow depends on __________ |
| A. | Reynolds number |
| B. | Prandtl number |
| C. | Nusselt number |
| D. | Archimedes number |
| Answer» B. Prandtl number | |
| 3. |
What are examples of the rheopexy fluids? |
| A. | Gypsum pastes, printer inks |
| B. | Gypsum pastes, ketchup |
| C. | Printer inks, ketchup |
| D. | Only ketchup |
| Answer» B. Gypsum pastes, ketchup | |
| 4. |
The viscosity of liquid ____________as temperature increases. |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | fluctuation |
| Answer» C. remains same | |
| 5. |
The viscosity of gases ____________as temperature increases. |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | fluctuation |
| Answer» B. decreases | |
| 6. |
Shear thinning is also called as __________ |
| A. | thixotropy |
| B. | pseudoplastic |
| C. | non-newton fluid |
| D. | relative shear stress |
| Answer» B. pseudoplastic | |
| 7. |
Are these statements about the pseudoplastic fluids true?Statement 1:The viscosity of these fluids decreases as the shear rate decreases.Statement 2: Tomato puree is an example of pseudoplastic fluid. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» D. False, False | |
| 8. |
Viscosity is based on _________ |
| A. | law of conservation of mass only |
| B. | law of conservation of energy only |
| C. | Newton’s law |
| D. | third law of thermodynamics only |
| Answer» D. third law of thermodynamics only | |
| 9. |
The ratio between shear stress and shear rate in a fluid is called __________ |
| A. | bulk modulus |
| B. | viscosity |
| C. | specific density |
| D. | young’s modulus |
| Answer» C. specific density | |
| 10. |
Viscous force is of the same character as _______ forces in solids. |
| A. | shear |
| B. | impact |
| C. | gravitational |
| D. | electromagnetic |
| Answer» B. impact | |