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. |
What is the yield coefficient if the initial substrate concentration is 20 g/l and biomass is 0.2 g/l. The substrate is then consumed and produces 6.0 g/l of biomass? |
| A. | 0.09 g biomass / g substrate |
| B. | 0.19 g biomass / g substrate |
| C. | 0.20 g biomass / g substrate |
| D. | 0.29 g biomass / g substrate |
| Answer» E. | |
| 2. |
What is the yield coefficient if the initial substrate concentration is 10 g/l and biomass is 0.1 g/l. The substrate is then consumed and produces 5.3 g/l of biomass? |
| A. | 0.50 g biomass / g substrate |
| B. | 0.52 g biomass / g substrate |
| C. | 0.54 g biomass / g substrate |
| D. | 0.56 g biomass / g substrate |
| Answer» C. 0.54 g biomass / g substrate | |
| 3. |
The yield coefficient is not used in growth kinetic relationship of which of the following growth kinetics? |
| A. | Zero order kinetics |
| B. | First order kinetics |
| C. | Second order kinetics |
| D. | Monod’s kinetics |
| Answer» D. Monod’s kinetics | |
| 4. |
What do you mean by the term “Ks”? |
| A. | Saturation constant |
| B. | Half saturation constant |
| C. | Variable shape constant |
| D. | Solution constant |
| Answer» C. Variable shape constant | |
| 5. |
What is the molarity of 5.30 g of Na2CO3 dissolved in 400.0 mL solution? |
| A. | 0.150 M |
| B. | 0.125 M |
| C. | 0.155 M |
| D. | 0.120 M |
| Answer» C. 0.155 M | |
| 6. |
What is the molarity of 245.0 g of H2SO4 dissolved in 1.000 L of solution? |
| A. | 2.408 M |
| B. | 2.508 M |
| C. | 2.598 M |
| D. | 2.498 M |
| Answer» E. | |
| 7. |
The equation for aerobic production of acetic acid from ethanol is ____________ C2H5OH(ethanol) + O2(acetic acid) → CH3CO2H + H2O Acetobacter aceti bacteria are added to vigorously-aerated medium containing 10 g l-1 ethanol. After some time, the ethanol concentration is 2 g l-1 and 7.5 g l-1 acetic acid is produced. Calculate the Observed yield. |
| A. | 0.94 g g-1 |
| B. | 0.95 g g-1 |
| C. | 0.92 g g-1 |
| D. | → CH3CO2H + H2O Acetobacter aceti bacteria are added to vigorously-aerated medium containing 10 g l-1 ethanol. After some time, the ethanol concentration is 2 g l-1 and 7.5 g l-1 acetic acid is produced. Calculate the Observed yield.a) 0.94 g g-1b) 0.95 g g-1c) 0.92 g g-1d) 0.96 g g-1View Answer |
| Answer» B. 0.95 g g-1 | |
| 8. |
Which of the following type of yield is referred to as “Maximum possible yields”? |
| A. | Instantaneous yields |
| B. | Theoretical yields |
| C. | Observed yields |
| D. | Non- instantaneous yields |
| Answer» C. Observed yields | |
| 9. |
THE_YIELD_COEFFICIENT_IS_NOT_USED_IN_GROWTH_KINETIC_RELATIONSHIP_OF_WHICH_OF_THE_FOLLOWING_GROWTH_KINETICS??$ |
| A. | Zero order kinetics |
| B. | First order kinetics |
| C. | Second order kinetics |
| D. | Monod’s kinetics |
| Answer» C. Second order kinetics | |
| 10. |
What is the yield coefficient if the initial substrate concentration is 10 g/l and biomass is 0.1 g/l. The substrate is then consumed and produces 5.3 g/l of biomass?$ |
| A. | 0.50 g biomass/ g substrate |
| B. | 0.52 g biomass/ g substrate |
| C. | 0.54 g biomass/ g substrate |
| D. | 0.56 g biomass/ g substrate |
| Answer» E. | |
| 11. |
What do you mean by the term “Ks”?# |
| A. | Saturation constant |
| B. | Half saturation constant |
| C. | Variable shape constant |
| D. | Solution constant |
| Answer» D. Solution constant | |
| 12. |
What is the unit of specific growth rate? |
| A. | g<sup>-1</sup> |
| B. | g/h |
| C. | gl/h |
| D. | h<sup>-1</sup> |
| Answer» C. gl/h | |
| 13. |
What is the molarity of 5.30 g of Na2CO3 dissolved in 400.0 mL solution? |
| A. | 0.150 M |
| B. | 0.125 M |
| C. | 0.155 M |
| D. | 0.120 M |
| Answer» E. | |
| 14. |
What is the molarity of 245.0 g of H2SO4 dissolved in 1.000 L of solution? |
| A. | 2.408 M |
| B. | 2.508 M |
| C. | 2.598 M |
| D. | 2.498 M |
| Answer» C. 2.598 M | |
| 15. |
How many grams of carbon is/are in one mole? |
| A. | 1 gram |
| B. | 2 grams |
| C. | 12 grams |
| D. | 100 grams |
| Answer» E. | |
| 16. |
Refer to Q2 and, calculate the theoretical yield. |
| A. | 1.20 g g<sup>-1</sup> |
| B. | 1.10 g g<sup>-1</sup> |
| C. | 1.30 g g<sup>-1</sup> |
| D. | 1.40 g g<sup>-1</sup> |
| Answer» D. 1.40 g g<sup>-1</sup> | |
| 17. |
Which of the following type of yield is referred to as “Maximum possible yields”? |
| A. | Instantaneous yields |
| B. | Theoretical yields |
| C. | Observed yields |
| D. | Non- instantaneous yields |
| Answer» C. Observed yields | |