MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is most true? |
| A. | N<sub>a</sub> = kcA(c<sub>ai</sub> c<sub>a</sub>) |
| B. | N<sub>a</sub> = kcA c |
| C. | N<sub>a</sub> = kcA(c<sub>ai</sub> c<sub>a</sub>)<sub>mean</sub> |
| D. | N<sub>a</sub> = kcA(c<sub>ai</sub> c<sub>a</sub>)<sub>log mean</sub> |
| Answer» C. N<sub>a</sub> = kcA(c<sub>ai</sub> c<sub>a</sub>)<sub>mean</sub> | |
| 2. |
What is the correct formula for nusselt s number? |
| A. | h /k |
| B. | h /k |
| C. | hL/k |
| D. | h TL/k |
| Answer» D. h TL/k | |
| 3. |
What is the physical significance of nusselt s number? |
| A. | Ratio of convective heat transfer to conductive heat transfer |
| B. | Ratio of convective heat transfer to conductive heat transfer |
| C. | Ratio of total heat transfer to conductive heat transfer |
| D. | Ratio of total transfer to convective heat transfer |
| Answer» D. Ratio of total transfer to convective heat transfer | |
| 4. |
Which of the following is true about prandtl s number? |
| A. | N<sub>pr</sub> = C<sub>p</sub> /k |
| B. | N<sub>pr</sub> = C<sub>p</sub>k/ |
| C. | N<sub>pr</sub> = C<sub>v</sub> /k |
| D. | N<sub>pr</sub> = C<sub>p</sub> |
| Answer» B. N<sub>pr</sub> = C<sub>p</sub>k/ | |
| 5. |
Prandtl s number is the ratio of which two quantities? |
| A. | Momentum conductivity and thermal conductivity |
| B. | Coefficient of convection to thermal conductivity |
| C. | Momentum diffusivity and thermal diffusivity |
| D. | Interfacial force and viscous force |
| Answer» D. Interfacial force and viscous force | |
| 6. |
What value of reynold s number represents a laminar flow? |
| A. | 3 |
| B. | 2500 |
| C. | 5000 |
| D. | 78 |
| Answer» E. | |
| 7. |
What value of Reynold s number is obtained with water? |
| A. | 8 |
| B. | 16 |
| C. | 25 |
| D. | 50 |
| Answer» D. 50 | |
| 8. |
Which two forces is the reynold s number a ratio of? |
| A. | Gravitational force and interfacial force |
| B. | Interfacial force and viscous force |
| C. | Thermal conductivity and electrical conductivity |
| D. | Conduction and convection |
| Answer» C. Thermal conductivity and electrical conductivity | |