MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
The overall effectiveness factor is symbolized by __________ |
| A. | μ |
| B. | Φ |
| C. | η |
| D. | Ω |
| Answer» E. | |
| 2. |
The internal effectiveness factor is symbolized by ________ |
| A. | μ |
| B. | Φ |
| C. | η |
| D. | Ω |
| Answer» D. Ω | |
| 3. |
Rate of reaction over a finely crushed catalyst of radius of 0.5 mm was measured as 10.0 mole/sm3 catalyst. Temperature is 400 K and pressure is 105 Pa and mole fraction of reactant in the gas is 0.1. Find the rate for a catalyst of pellet radius of 3mm. (Assume ηC = 1 for small catalyst). |
| A. | 7.01 mole / m3s |
| B. | 7.03 mole / m3s |
| C. | 7.05 mole / m3s |
| D. | 7.07 mole / m3s |
| Answer» D. 7.07 mole / m3s | |
| 4. |
“Increasing the bulk concentration of substrate CAb”, is included in which parameter? |
| A. | Internal mass-transfer |
| B. | External mass-transfer |
| C. | Internal-External mass- transfer |
| D. | Heat transfer |
| Answer» C. Internal-External mass- transfer | |
| 5. |
Reducing the reaction rate rA,obs improves the effectiveness of mass transfer aimed at increasing the reaction rate. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
THE_INTERNAL_EFFECTIVENESS_FACTOR_IS_SYMBOLIZED_BY_________?$ |
| A. | μ |
| B. | —Ñ |
| C. | η |
| D. | Ω |
| Answer» D. ‚Äö√Ñ√∂‚àö√´¬¨‚àÇ | |
| 7. |
The_overall_effectiveness_factor_is_symbolized_by___________$ |
| A. | μ |
| B. | —Ñ |
| C. | η |
| D. | Ω |
| Answer» E. | |
| 8. |
Rate of reaction over a finely crushed catalyst of radius of 0.5 mm was measured as 10.0 mole/sm3 catalyst. Temperature is 400 K and pressure is 105 Pa and mole fraction of reactant in the gas is 0.1. Find the rate for a catalyst of pellet radius of 3mm. (Assume ηC = 1 for small catalyst)?# |
| A. | 7.01 mole/ m<sup>3</sup>s |
| B. | 7.03 mole/ m<sup>3</sup>s |
| C. | 7.05 mole/ m<sup>3</sup>s |
| D. | 7.07 mole/ m<sup>3</sup>s |
| Answer» D. 7.07 mole/ m<sup>3</sup>s | |
| 9. |
Accessibility of the surface area of the catalyst is typically non-limiting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Increase in pump speed does not change the overall reaction rate. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
The boundary layer is necessary for the analysis of data. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
“Increasing the bulk concentration of substrate CAb”, is included in which parameter?$ |
| A. | Internal mass-transfer |
| B. | External mass-transfer |
| C. | Internal-External mass- transfer |
| D. | Heat transfer |
| Answer» C. Internal-External mass- transfer | |
| 13. |
Thiele modulus will increase with the decrease of the size of the catalyst. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Reducing the reaction rate rA,obs improves the effectiveness of mass transfer aimed at increasing the reac tion rate. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
Thiele modulus is used for the solid catalyst. |
| A. | True |
| B. | False |
| Answer» C. | |