MCQOPTIONS
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MCQOPTIONS
This section includes 14 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 most influencing factor of diffusivity of molecules is _______________ |
| A. | Lattice structure |
| B. | Temperature |
| C. | Presence of defects |
| D. | Diffusing species |
| Answer» C. Presence of defects | |
| 2. |
Fick’s second law is applicable to steady –state diffusion? |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Example of steady-state diffusion is _______________ |
| A. | Hydrogen purification by palladium sheets |
| B. | Doping semi-conductors |
| C. | Corrosion resistance of aluminium |
| D. | Decarburization |
| Answer» B. Doping semi-conductors | |
| 4. |
A bioreactor of working volume 50 m3 produces a metabolite (X) in batch culture under given operation conditions form a substrate (S). The final concentration of metabolite at the end of each run was 1.1kg m-3. The bioreactor was operated to complete 60 runs in each year. What will be the annual output of the system (production of metabolite (X)) in Kg per year? |
| A. | 70 |
| B. | 66 |
| C. | 77 |
| D. | 60 |
| Answer» C. 77 | |
| 5. |
In the below equation, what does “D” represents? |
| A. | Length of the membrane |
| B. | Distance |
| C. | Diffusion |
| D. | Thickness of the membrane |
| Answer» E. | |
| 6. |
LENGTH_OF_THE_MEMBRANE?$ |
| A. | Distance |
| B. | Diffusion |
| C. | Thickness of the membrane |
| Answer» B. Diffusion | |
| 7. |
Example of steady-state diffusion is _______________$ |
| A. | Hydrogen purification by palladium sheets |
| B. | Doping semi-conductors |
| C. | Corrosion resistance of aluminium |
| D. | Decarburization |
| Answer» C. Corrosion resistance of aluminium | |
| 8. |
A_bioreactor_of_working_volume_50_m3_produces_a_metabolite_(X)_in_batch_culture_under_given_operation_conditions_form_a_substrate_(S)._The_final_concentration_of_metabolite_at_the_end_of_each_run_was_1.1kg_m-3._The_bioreactor_was_operated_to_complete_60_runs_in_each_year._What_will_be_the_annual_output_of_the_system_(production_of_metabolite_(X))_in_Kg_per_year?$ |
| A. | 70 |
| B. | 66 |
| C. | 77 |
| D. | 60 |
| Answer» C. 77 | |
| 9. |
The S.I. unit of thermal diffusivity is ___________ |
| A. | m/s |
| B. | m<sup>2</sup>/s |
| C. | m/s<sup>2</sup> |
| D. | m<sup>2</sup>/s<sup>2</sup> |
| Answer» C. m/s<sup>2</sup> | |
| 10. |
If the rain drop drags and enter into the atmosphere, which type of diffusion will it experience? |
| A. | Energy |
| B. | Osmosis |
| C. | Momentum |
| D. | Mass |
| Answer» D. Mass | |
| 11. |
Which one of the following is not the type of transfer in molecular diffusion? |
| A. | Density |
| B. | Mass |
| C. | Momentum |
| D. | Energy |
| Answer» B. Mass | |
| 12. |
The total rate of oxygen uptake is proportional to the concentration of __________ |
| A. | Medium |
| B. | Liquid |
| C. | Number of cells |
| D. | Gas |
| Answer» D. Gas | |
| 13. |
Diffusion maintains the concentration difference between high and low concentrations. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
The size of eddy is proportional to the streamline flow. |
| A. | True |
| B. | False |
| Answer» C. | |