Explore topic-wise MCQs in Bioprocess Engineering Questions and Answers.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Refer to Q6 and calculate the value of CAs.

A. 1.9 g m-3
B. 0.9 g m-3
C. 2.9 g m-3
D. 3.9 g m-3
Answer» B. 0.9 g m-3
Discussion
2.

Denitrifying bacteria are immobilised in gel beads and used in a stirred reactor for removal of nitrate from groundwater. At a nitrate concentration of 3 g m-3, the conversion rate is 0.011 g s-1 m-3 catalyst. The effective diffusivity of nitrate in the gel is 1.5×10-9 m2 s-1, the beads are 6 mm in diameter, and the liquid-solid mass-transfer coefficient is 10-5 m s-1. Km for the immobilised bacteria is approximately 25 g m-3. What is the value of an observable modulus for external mass transfer, Ω?

A. 0.35
B. 0.36
C. 0.37
D. 0.38
Answer» D. 0.38
Discussion
3.

Removing the boundary layer, CAS would decrease.

A. True
B. False
Answer» C.
Discussion
4.

If Ω << 1, then _________

A. CAS = CAb
B. CAS < CAb
C. CAS > CAb
D. CAS = CAb = 0
Answer» B. CAS < CAb
Discussion
5.

What is the dimension of liquid – phase mass-transfer coefficient “kS”?

A. LT-1
B. LT
C. L-1T-1
D. L-1T
Answer» B. LT
Discussion