MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Nusselt number is the mass transfer analog of which number? |
| A. | Sherwood number |
| B. | Schmidt number |
| C. | Reynolds number |
| D. | Nusselt number |
| Answer» B. Schmidt number | |
| 2. |
Advection is related to Convection. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Refer to Q7 and Q8 and calculate the mass-transfer coefficient by using the mass and heat transfer analogy. |
| A. | 1.661×10-05 mole/m2 .s.Pa |
| B. | 1.663×10-05 mole/m2 .s.Pa |
| C. | 1.665×10-05 mole/m2 .s.Pa |
| D. | 1.669×10-05 mole/m2 .s.Pa |
| Answer» D. 1.669×10-05 mole/m2 .s.Pa | |
| 4. |
Refer to Q7 and Calculate the value of Schmidt number (Sc). |
| A. | 1.02 |
| B. | 1.04 |
| C. | .a) 1.02b) 1.04c) 1.06 |
| D. | 1.08 |
| Answer» E. | |
| 5. |
Evaporation of n-propyl alcohol into carbon dioxide for the same geometrical arrangement of tube diameter (d) of 38 mm when the carbon dioxide flows at a maximum velocity (ug) of 10 m/s at 300 K and 1 atm. Properties of dilute mixtures of propyl alcohol in carbon dioxide at 300 K and 1 atm are: Molecular weight (M) = 44 gm/mole, density (ρ) = 1.8 kg/m3 , Viscosity (μ) = 1.49×10-5 kg/m.s, diffusivity (DAB) = 7.6×10-6 m2 /s and universal gas constant (R) = 8.314 J/mole.K. Estimate the Reynolds number.Nu = 0.453Re0.568 Pr0.36, where 10 < Re (= ρug d/μ)<106 and 0.7 < Pr < 500 |
| A. | 45906.04 |
| B. | 40906.05 |
| C. | 45906.05 |
| D. | of 38 mm when the carbon dioxide flows at a maximum velocity (ug) of 10 m/s at 300 K and 1 atm. Properties of dilute mixtures of propyl alcohol in carbon dioxide at 300 K and 1 atm are: Molecular weight (M) = 44 gm/mole, density (ρ) = 1.8 kg/m3 , Viscosity (μ) = 1.49×10-5 kg/m.s, diffusivity (DAB) = 7.6×10-6 m2 /s and universal gas constant (R) = 8.314 J/mole.K. Estimate the Reynolds number.Nu = 0.453Re0.568 Pr0.36, where 10 < Re (= ρug d/μ)<106 and 0.7 < Pr < 500a) 45906.04b) 40906.05c) 45906.05d) 40906.04 |
| Answer» B. 40906.05 | |
| 6. |
Which number is analogous to Reynold’s number? |
| A. | Nusselt number |
| B. | Schmidt number |
| C. | Sherwood number |
| D. | Grashof number |
| Answer» E. | |
| 7. |
ADVECTION_IS_RELATED_TO_CONVECTION.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
REFER_TO_Q7_AND_Q8_AND_CALCULATE_THE_MASS-TRANSFER_COEFFICIENT_BY_USING_THE_MASS_AND_HEAT_TRANSFER_ANALOGY.?$ |
| A. | 1.661√ó10<sup>-05</sup> mole/m<sup>2</sup> .s.Pa |
| B. | 1.663√ó10<sup>-05</sup> mole/m<sup>2</sup> .s.Pa |
| C. | 1.665√ó10<sup>-05</sup> mole/m<sup>2</sup> .s.Pa |
| D. | 1.669√ó10<sup>-05</sup> mole/m<sup>2</sup> .s.Pa |
| Answer» D. 1.669‚Äö√†√∂‚àö‚â•10<sup>-05</sup> mole/m<sup>2</sup> .s.Pa | |
| 9. |
Nusselt number is the mass transfer analog of which number?$ |
| A. | Sherwood number |
| B. | Schmidt number |
| C. | Reynolds number |
| D. | Nusselt number |
| Answer» B. Schmidt number | |
| 10. |
Refer to Q7 and Calculate the value of Schmidt number (Sc)? |
| A. | 1.02 |
| B. | 1.04 |
| C. | 1.06 |
| D. | 1.08 |
| Answer» E. | |
| 11. |
Evaporation of n-propyl alcohol into carbon dioxide for the same geometrical arrangement of tube diameter (d) of 38 mm when the carbon dioxide flows at a maximum velocity (ug) of 10 m/s at 300 K and 1 atm. Properties of dilute mixtures of propyl alcohol in carbon dioxide at 300 K and 1 atm are: Molecular weight (M) = 44 gm/mole, density (ρ) = 1.8 kg/m3 , Viscosity (μ) = 1.49×10-5 kg/m.s, diffusivity (DAB) = 7.6×10-6 m2 /s and universal gas constant (R) = 8.314 J/mole.K. Estimate the Reynolds number.$ |
| A. | <10<sup>6</sup> and 0.7 < Pr < 500 |
| B. | 45906.04 |
| C. | 40906.05 |
| D. | 45906.05 |
| Answer» B. 45906.04 | |
| 12. |
Overall heat transfer coefficient is associated with? |
| A. | Conduction and radiation |
| B. | Conduction and convection |
| C. | Convection and radiation |
| D. | Radiation |
| Answer» C. Convection and radiation | |
| 13. |
What is the unit of slip velocity? |
| A. | m min |
| B. | m<sup>2</sup>/ min |
| C. | m/min |
| D. | m/min<sup>2</sup> |
| Answer» D. m/min<sup>2</sup> | |
| 14. |
Which number is analogous to Prandlt number in terms of mass transfer? |
| A. | Sherwood number |
| B. | Schmidt number |
| C. | Reynolds number |
| D. | Nusselt number |
| Answer» C. Reynolds number | |
| 15. |
Which number is defined as the ratio of momentum diffusivity to thermal diffusivity? |
| A. | Prandtl number |
| B. | Nusselt number |
| C. | Reynold’s number |
| D. | Sherwood number |
| Answer» B. Nusselt number | |
| 16. |
Which number is analogous to Reynold’s number?$ |
| A. | Nusselt number |
| B. | Schmidt number |
| C. | Sherwood number |
| D. | Grashof number |
| Answer» E. | |
| 17. |
The ratio of inertial forces to viscous forces is called as ________ |
| A. | Nusselt number |
| B. | Schmidt number |
| C. | Sherwood number |
| D. | Reynolds number |
| Answer» E. | |