Download AKTU B-Tech 5th Sem 2015-2016 Bioprocess Engineering I Ebt 503Nbt 503 Question Paper

Printed Pages: 4

EBT-503/NBT-503

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

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Paper ID: 154513

Roll No.

B.Tech.

(SEM. V) THEORY EXAMINATION 2015-16

BIOPROCESS ENGINEERING-I

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[Time: 3 hours]

[Maximum Marks: 100]

SECTION-A

Note: Attempt all parts. All parts carry equal marks. Write answer of each part in short. (2×10=20)

(A) Indicate True (T) or False (F):

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1. (a) Wattmeter is a device for measurement of agitation power. ( )
2. (b) Penicillin production is an anaerobic process. ( )
3. (c) Acetic acid production from sugary raw material involves two stage fermentation. ( )
4. (d) Ethanol production is an aerobic fermentation. ( )
5. (e) Distillation is used to separate the liquids that have different boiling points. ( )

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(B) Fill in the gap with one suitable word:

1. (f) All the __________ required for the __________ is stored in DNA.
2. (g) In microbiology lab, agar-agar is used as a __________ .
3. (h) Residence time in CSTR is a function of __________ .
4. (i) Supply of oxygen to bioreactor depends on __________ of oxygen by the __________ .

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5. (j) In sterilization __________ is known as __________ of __________.

SECTION-B

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

1. Explain the 'yield coefficients' terms used in bioprocess.
2. How do you express growth of the micro organisms in a batch culture system?

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3. Enumerate the steps involved in an industrial bioprocess.
4. Give a brief mention of demand and supply of oxygen in an industrial bioprocess.
5. Discuss the classification of product formation in bioprocess (fermentation) due to consumption of substrate.
6. How do you explain the environmental control of a bioreactor?

SECTION-C

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Note: Attempt any two questions from this section. (15×2=30)

1. Discuss the importance of the Del factor (?).
2. Give a brief account of air sterilization in a bioprocess.
3. Develop temperature -time profile of batch sterilization of media using steam sparging as a heat source as given below:
   T=To(1+a?)/(1+?)

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4. Discuss the various resistances that are possible in a gas-sparged bioprocess.
5. 100 Kg per hour of a liquid containing 12% total solid is concentrated to produce a liquid containing 32% total solid. Calculate the quantity of water removed per hour.

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