Download AKTU B-Tech 7th Sem 2015-2016 EBT 042 Bioprocess Engineering Ii Question Paper

Printed Pages: 4

470 EBT-042

(Following Paper ID and Roll No. to be filled in your Answer Book)

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Paper ID :154754 Roll No.

B.Tech. (SEM. VII) THEORY EXAMINATION, 2015-16

BIOPROCESS ENGINEERING-II

[Time: 3 hours] [Total Marks: 100]

Section-A

Note: Attempt all questions. All parts carry equal marks. Write answer of each part in short. (10x2=20)

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1. (A) Indicate True (T) or False (F):
   1. Batch bioreactor operates at Steady state. ( )
   2. Thermodynamically, CSTR is a Closed system. ( )
   3. Exponential growth in a batch culture may be prolonged by the addition of fresh medium in the vessel. ( )
   4. The destruction of microorganization by steam (moist heat) follows first order kinetics. ( )
   5. Oxidation of one mole of glucose. ( )

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2. (B) Fill in the gap by a suitable one word:
   1. K2a is used as a measurement of.......................in the system.
   2. Bioreactor is regarded as a ....................of estimation of microbial growth.
   3. Batch culture system represents a ....................system.
   4. Fermeuted broth is generally very......................containing about 5 to 20% of the..................

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   5. Liquids and gases before the bioreactor are...................

Section-B

Attempt any five questions from this section. (10×5=50)

2. How do you correlate biochemical Engg. with biotechnology?
3. Enumerate the steps in a bioprocess for the production of an industrial product with a neat flow process diagram.

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4. Enumerate the methods for scale-up of bioreactor with a brief description of one of these methods.
5. How do you differentiate between "simple type product formation" and "simultaneous type of product formation"?
6. Discuss the features of a chemostat.
7. Give a brief mention of mass transfer in a bioreactor.
8. Write short notes on any two of the following:
   1. Residence time.

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   2. Power consumption in bioreactor.
   3. Analysis of bioprocess experimental data.
   4. Airlift bioreactor.

Section-C

Attempt any two question from this section. (15×2=30)

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10. Enumerating the factors affecting 'K2a' and develop the following expression:

    Ka= Cc Ca Axy

    C-CL

11. Give an account of computing and optimization in bioprocess.
12. Calculate the aeration rate with large fermentor. The data required for this are as under :
    1. Aeration rate with Small fermentor=1VVM.

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    2. Scale up ratio = 5.0

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