Explore topic-wise MCQs in Chemical Reaction Engineering.

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