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TLS Online TPP Program

#Question id: 14135

Which of the following statement is correct about PAM matrix? 

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. The PAM matrices were first constructed by Margaret Dayhoff
  2. PAM matrices with lower serial numbers are more suitable for aligning more closely related sequences.
  3. PAM stands for “point accepted mutation” 
  4. All of the above 
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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  
TLS Online TPP Program

#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.