Bioprocess Engineering Measurement Kla Online Exam Quiz
Bioprocess Engineering Measurement Kla GK Quiz. Question and Answers related to Bioprocess Engineering Measurement Kla. MCQ (Multiple Choice Questions with answers about Bioprocess Engineering Measurement Kla
A 10,000 liter (of liquid) bioreactor contains 5 g / L of growing cells qO2 = 20 mmoles O2 / (g cells hr) DT = 2 m, DI = 1 m, (6 – blade turbine agitator) x 3 blades and CL = 1 mg O2/L. Calculate OUR.
Options
A : 200 mmoles O2 / (g cells hr)
B : 250 mmoles O2 / (g cells hr)
C : 100 mmoles O2 / (g cells hr)
D : 150 mmoles O2 / (g cells hr)
Refer to Q12 and, calculate OTR. (Given: kLa = 169 mmol O2/ 1 hr atm, P* = 0.0263 atm and PO2 = 0.21 atm).
Options
A : 30.05 mmoles O2 / liter hr
B : 31.05 mmoles O2 / liter hr
C : 20.05 mmoles O2 / liter hr
D : 21.05 mmoles O2 / liter hr
Refer to Q5 and, calculate: An error is made determining the steady-state oxygen level which, instead of 78%, is taken as 70%. What is the percentage error in kLa resulting from this 10% error in ar{C_{AL}}?
Options
A : 50%
B : 25%
C : 75%
D : 100%
Which of the following does not affect KLa value?
Options
A : Air flow rate
B : Presence of enzymes
C : Presence of antifoam agents
D : Degree of agitation
Which of the following is not a chemical method to measure kLa?
Options
A : Dynamic gassing out method
B : Sodium sulfite oxidation method
C : Carbon dioxide absorption method
D : Glucose oxidase method
Which of the following technique does not require the measurement of dissolved oxygen concentrations?
Options
A : Dynamic gassing out method
B : Static gassing out method
C : Oxygen-Balance method
D : Sulphite oxidation method
Which of the following is the efficient value for oxygen concentration?
Options
A : Equal to Ccrit
B : Below Ccrit
C : Above Ccrit
D : Ccrit
For which type of mass transfer does Oxygen-Balance method is used?
Options
A : Gas- Gas
B : Gas-Solid
C : Gas-liquid
D : Liquid-Liquid
What is the proper concentration unit of kLa?
Options
A : h-1
B : ml/h
C : mmol/h
D : ml/sec
From Q12 and Q13, which of the following condition is relevant?
Options
A : OTR>OUR
B : OTR<OUR
C : OTR=OUR
D : OTR?OUR
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