Biochemical Engineering

Question: Start up expenses in a fermentation industry varies from [A]. 0-5% of the capital cost [B]. 10-15% of the capital cost [C]. 5-10% of the capital cost [D]. 15-20% of the capital cost Answer: Option C Explanation: No answer description available for this question.

Question: Maintenance cost varies from [A]. 0-4% of the capital cost [B]. 12-16% of the capital cost [C]. 4-8% of the capital cost [D]. 8-12% of the capital cost Answer: Option C Explanation: No answer description available for this question.

Question: For cost analysis in a fermentor system, the depreciation cost varies from [A]. 5-6% of the capital cost [B]. 6-7% of the capital cost [C]. 6-10% of the capital cost [D]. 8-10% of the capital cost Answer: Option C Explanation: No answer description available for this question.

Question: Which of the operation does not come under upstream processing? [A]. Media preparation [B]. Inoculum development [C]. Effluent treatment [D]. Storage of raw material Answer: Option C Explanation: No answer description available for this question.

Question: In antibiotic manufacturing processes, the fermentation time ranges from [A]. 2-3 weeks [B]. 1-2 weeks [C]. 4-5 weeks [D]. 2-4 weeks Answer: Option C Explanation: No answer description available for this question.

Question: Concentration polarization can be reduced further by [A]. pre filtering the solution [B]. reducing the flow rate per unit membrane surface area [C]. back washing periodically [D]. all of the above Answer: Option D Explanation: No answer description available for this question.

Question: If the solute passes through membrane freely, the the rejection coefficient (s) is [A]. 1 [B]. 0 [C]. >1 [D]. <1 Answer: Option B Explanation: No answer description available for this question.

Question: If the membrane rejects all solute, the rejection coefficient (s) is [A]. 1 [B]. 0 [C]. >1 [D]. <1 Answer: Option A Explanation: No answer description available for this question.

Question: The solvent flux across the membrane can be expressed as (where A is the area, Lp is the membrane permeability, σ is the reflection point, Δp is applied pressure and Δπ is the osmotic pressure) [A]. J = Lp(Δp – σΔπ) [B]. J/A = Lp(Δp – σΔπ) [C]. J = Lp/σΔπ [D]. J/A =…