A mutated strain of E. coli replicates DNA normally at 25°C, but replication stops immediately when the temperature is raised to 37°C. Which protein is likely to be non-functional at the higher temperature?

TLS Online TPP Program

#Question id: 14426

#Section 5: Bioprocess Engineering and Process Biotechnology

What is the function of the proportional mode in PID controllers? 

TLS Online TPP Program

#Question id: 14427

#Section 5: Bioprocess Engineering and Process Biotechnology

In which of the following controllers, the performance will improve with time?

TLS Online TPP Program

#Question id: 14428

#Section 5: Bioprocess Engineering and Process Biotechnology

The sensor, which is an integral part of fermentation equipment, the measured value cannot used directly for control. this type of controlling system is called  

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#Question id: 14429

#Section 5: Bioprocess Engineering and Process Biotechnology

Which one of the following constants is represented by Kp?

TLS Online TPP Program

#Question id: 14430

#Section 5: Bioprocess Engineering and Process Biotechnology

Which is not correctly match, effect of process variables on mass transfer characteristics?

Process variable	mass transfer characteristics
P. P/V	oxygen transfer rate
q. Impeller tip speed	mixing time
r. Reynolds	number shear rate

TLS Online TPP Program

#Question id: 14431

#Section 5: Bioprocess Engineering and Process Biotechnology

the centrifugal separation of biomass of 80um sized cells of density 1.04kgm^-3 was carried out in a tubular centrifuge having a diameter of 15cm and rotating at 1200 rev/min. calculate the residence time if distance between the liquid surface and the axis of rotation was 0.8cm, the liquid viscosity were 1.0kgm^-3 and 0.013 gcm^-ls-1respectively.