Who reported that sparger design does not affect K<sub>L</sub>a?
Anonymous Quiz
71%
Hassan and Robinson
14%
Tuffile and Pinho
7%
Taguchi and Roels
7%
Riet and Tramper
What happens to the value of K<sub>L</sub>a if the temperature is raised more than 40°C?
Anonymous Quiz
25%
Decreases
44%
Become zero
25%
Increases
6%
Becomes constant
The rheological type of Endomyces sp. is ____________
Anonymous Quiz
33%
Pseudoplastic rheology
33%
Bingham plastic rheology
27%
Dilatant rheology
7%
Casson body
What do you mean by ‘scale-up’?
Anonymous Quiz
11%
Decreasing the scale of fermentation
67%
Increasing the scale of fermentation
6%
Decreasing the rate of agitation
17%
Increasing the rate of fermentation
Which of the following factors are not involved in the scale-up process?
Anonymous Quiz
47%
Inoculum development
26%
Sterilization
16%
Temperature
11%
Medium design
Given below is a graphical representation of the scale-up window. What do the x and y-axis denote?
Anonymous Quiz
31%
y – agitation, x – aeration
54%
y – aeration, x – agitation
15%
y – KLa, x – time
0%
y – time, x – KLa
What do you mean by ‘scale-down’?
Anonymous Quiz
75%
Decreasing the scale of fermentation
19%
Increasing the scale of fermentation
0%
Decreasing the rate of agitation
6%
Increasing the rate of fermentation
Which of the following fermentation is carried out by yeast?
Anonymous Quiz
50%
Lactic acid fermentation
45%
Alcohol fermentation
5%
Pyruvic fermentation
0%
Acrylic fermentation
Which of the following is used to pack columns in adsorption chromatography?
Anonymous Quiz
33%
Carbon
53%
Silica gel
7%
Potassium hydroxide
7%
Aluminium oxide
😱1
Which of the following stationary phase is not used in gel filtration chromatography?
Anonymous Quiz
41%
Sephadex
12%
Sephacryl
35%
Bio-Gel
12%
Resin beads
Chromatography is used to separate ____________
Anonymous Quiz
73%
Complex mixture compounds
20%
Simple mixtures
7%
Viscous mixtures
0%
Halogens
The Rf value is the ratio of distance travelled by solvent to the distance travelled by the solute.
Anonymous Quiz
82%
True
18%
False
Which of the following is not a factor to investigate in a site survey?
Anonymous Quiz
36%
BOD/COD
18%
Sterility
18%
Colour
27%
Radioactivity
Which of the following is a primary treatment?
Anonymous Quiz
29%
Sedimentation
36%
Activated sludge
21%
Sand filters
14%
Microstrainers
Which is the use of comminutors?
Anonymous Quiz
64%
To reduce the size of particles
18%
To remove the grit
9%
To remove large particles
9%
To remove small particles