MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Reaction Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The value of m,washout given N = 4 and k=1 is____ |
| A. | 1.06 |
| B. | 1.34 |
| C. | 2.45 |
| D. | 3.86 |
| Answer» B. 1.34 | |
| 2. |
The value of CR,opt for product limiting microbial fermentation (in kg/m3), given the value of CR*=60 kg/m3 is ____ |
| A. | 30 |
| B. | 20 |
| C. | 15 |
| D. | 10 |
| Answer» B. 20 | |
| 3. |
If CA0 = 8 and CM = 1, the value of N is ____ |
| A. | 4 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» E. | |
| 4. |
Given the value of opt for product limiting microbial fermentation is 2 hrs, then the value of washout (in hour) is ____ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 5. |
The plot representing the variation of rate, rC with CA for Monod type microbial fermentation occurring in a PFR is ____ |
| A. | <img alt="Plot of variation of rate, rC with CA for Monod type microbial fermentation - option a" class="alignnone size-full wp-image-284395" height="337" sizes="(max-width: 343px) 100vw, 343px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6a.png 343w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6a-300x295.png 300w" width="343"/> |
| B. | <img alt="Plot of variation of rate, rC with CA for Monod type microbial fermentation - option b" class="alignnone size-full wp-image-284394" height="338" sizes="(max-width: 341px) 100vw, 341px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6b.png 341w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6b-150x150.png 150w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6b-300x297.png 300w" width="341"/> |
| C. | <img alt="Plot of variation of rate, rC with CA for Monod type microbial fermentation - option c" class="alignnone size-full wp-image-284393" height="326" sizes="(max-width: 333px) 100vw, 333px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6c.png 333w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6c-300x294.png 300w" width="333"/> |
| D. | <img alt="Plot of variation of rate, rC with CA for Monod type microbial fermentation - option d" class="alignnone size-full wp-image-284392" height="338" sizes="(max-width: 372px) 100vw, 372px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6d.png 372w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6d-300x273.png 300w" width="372"/> |
| Answer» C. <img alt="Plot of variation of rate, rC with CA for Monod type microbial fermentation - option c" class="alignnone size-full wp-image-284393" height="326" sizes="(max-width: 333px) 100vw, 333px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6c.png 333w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q6c-300x294.png 300w" width="333"/> | |
| 6. |
Optimum operations for CSTR carrying out substrate limiting fermentation reaction occurs at ___ |
| A. | = ( frac{N}{N-1} ) |
| B. | k = ( frac{N-1}{N} ) |
| C. | k = ( frac{N}{N-1} ) |
| D. | k = ( frac{N^2}{N-1} ) |
| Answer» D. k = ( frac{N^2}{N-1} ) | |
| 7. |
The plot of ( frac{1}{C_A} ) and for mixed flow substrate limiting fermentation reaction in fermenters, assuming no cells in feed stream is ___ |
| A. | Quadratic |
| B. | Linear |
| C. | Logarithmic |
| D. | Exponential |
| Answer» C. Logarithmic | |
| 8. |
The slope of the curve of ( frac{C_C}{r_C} ) and ( frac{1}{C_A} ) for the substrate limiting microbial reaction in a batch reactor is ____ |
| A. | ( frac{C_M}{k} ) |
| B. | ( frac{1}{k} ) |
| C. | ( frac{C_M}{k} ) |
| D. | ( frac{1}{k} ) |
| Answer» B. ( frac{1}{k} ) | |
| 9. |
The plot representing the variation of CC with the residence time in a PFR for substrate limiting microbial fermentation reaction is ____ |
| A. | <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option a" class="alignnone size-full wp-image-284423" height="327" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2a.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2a-300x280.png 300w" width="350"/> |
| B. | <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option b" class="alignnone size-full wp-image-284422" height="327" sizes="(max-width: 354px) 100vw, 354px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2b.png 354w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2b-300x277.png 300w" width="354"/> |
| C. | <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option c" class="alignnone size-full wp-image-284421" height="329" sizes="(max-width: 345px) 100vw, 345px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2c.png 345w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2c-300x286.png 300w" width="345"/> |
| D. | <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option d" class="alignnone size-full wp-image-284420" height="318" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d-300x273.png 300w" width="350"/> |
| Answer» D. <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option d" class="alignnone size-full wp-image-284420" height="318" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d-300x273.png 300w" width="350"/> | |
| 10. |
State true or false.For product limiting microbial fermentation in CSTR with CC0=0, CR0=0 and high CA0, washout occurs at k =1. |
| A. | True |
| B. | False |
| Answer» B. False | |