MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the mass transfer formula for a plug flow reactor? |
| A. | q = Ms(Co) |
| B. | q = Q (Co-C) |
| C. | q = Q Ms(Co-C) |
| D. | q = Q MsC |
| Answer» D. q = Q MsC | |
| 2. |
Which of these is used to analyse the minimum amount of extraction phase for treatment? |
| A. | Operating Diagram |
| B. | Freundlich Isotherm |
| C. | Langmuir Isotherm |
| D. | Isobar graphs |
| Answer» B. Freundlich Isotherm | |
| 3. |
Which of these do not relate the mass transfer coefficient and diffusion coefficient? |
| A. | Reynolds number |
| B. | Schmidt number |
| C. | Sherwood number |
| D. | Boltzamn constant |
| Answer» E. | |
| 4. |
In case of aqueous solution which of the following mathematical formula holds good?a) J = Nab) J = Na x Xac) J = (1-1/x |
| A. | J = Na |
| B. | J = Na x Xa |
| C. | J = (1-1/xa) X Na |
| D. | J = 1/xa X Na |
| Answer» B. J = Na x Xa | |
| 5. |
WHICH_OF_THESE_DO_NOT_RELATE_THE_MASS_TRANSFER_COEFFICIENT_AND_DIFFUSION_COEFFICIENT??$ |
| A. | Reynolds number |
| B. | Schmidt number |
| C. | Sherwood number |
| D. | Boltzamn constant |
| Answer» E. | |
| 6. |
What is the mass transfer formula for a plug flow reactor?$ |
| A. | q = M<sub>s</sub>(C<sub>o</sub>) |
| B. | q = Q (C<sub>o</sub>-C) |
| C. | q = Q M<sub>s</sub>(C<sub>o</sub>-C) |
| D. | q = Q M<sub>s</sub>C |
| Answer» D. q = Q M<sub>s</sub>C | |
| 7. |
The liquid phase controls the rate of mass transfer for compounds which have an H value of which of the following? |
| A. | H>0.05 |
| B. | H=0.02 |
| C. | H<0.002 |
| D. | H=1 |
| Answer» B. H=0.02 | |
| 8. |
How is the value for displacement value for solute calculated? |
| A. | V<sub>b</sub>= D<sub>t</sub>/ x |
| B. | V<sub>b</sub>= 2 D<sub>t</sub>/ x |
| C. | V<sub>b</sub>= D<sub>t</sub><sup>2</sup>/ x |
| D. | V<sub>b</sub>= 2 D<sub>t</sub><sup>2</sup>/ x |
| Answer» C. V<sub>b</sub>= D<sub>t</sub><sup>2</sup>/ x | |
| 9. |
In case of aqueous solution which of the following mathematical formula holds good? |
| A. | J = N<sub>a</sub> |
| B. | J = N<sub>a</sub> x X<sub>a</sub> |
| C. | J = (1-1/xa) X N<sub>a</sub> |
| D. | J = 1/xa X N<sub>a</sub> |
| Answer» B. J = N<sub>a</sub> x X<sub>a</sub> | |
| 10. |
In water treatment what is the driving force due to which mass transfer occurs? |
| A. | Gibbs Energy |
| B. | Electric potential |
| C. | Gravity |
| D. | Pressure |
| Answer» B. Electric potential | |
| 11. |
In which of the following cases the flux is considered as volumetric flux? |
| A. | Desalination/Reverse Osmosis |
| B. | Ion exchange |
| C. | Adsorption |
| D. | Aeration |
| Answer» B. Ion exchange | |
| 12. |
What is the flux not dependent on? |
| A. | Pressure |
| B. | Mass solute |
| C. | Area |
| D. | Time |
| Answer» B. Mass solute | |
| 13. |
Which of the following do not involve mass transfer in terms of water treatment? |
| A. | Clarification |
| B. | Aeration |
| C. | Air Stripping |
| D. | Adsorption |
| Answer» B. Aeration | |
| 14. |
__________ is the net movement of mass from one location or component to another. |
| A. | Osmosis |
| B. | Mass transfer |
| C. | Dilution |
| D. | Reverse osmosis |
| Answer» C. Dilution | |
| 15. |
Which among the following reactors has important advantages? |
| A. | Bubble column bioreactors |
| B. | Fluidized bed bioreactors |
| C. | Cylindrical orbitally shaken bioreactors |
| D. | Continuous stirred tank bioreactors |
| Answer» D. Continuous stirred tank bioreactors | |