What is the function of a 10-bit converter?
Anonymous Quiz
17%
It divides the signal into 64 steps
38%
It divides the signal into 256 steps
38%
It divides the signal into 1024 steps
7%
It divides the signal into 128 steps
Which of the following is not a fermenter?
Anonymous Quiz
10%
Bioflo
10%
Biostat B
68%
New Brunswick
13%
Blustar
Which of the following is not a surface active contaminant?
Anonymous Quiz
15%
Proteins
27%
Fatty acids
45%
Nucleic acids
12%
Lipids
The value of K<sub>L</sub>a increases with ____________ in agitation speed (rpm).
Anonymous Quiz
53%
Decrease
24%
Increase
18%
Constancy
6%
Zero
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
31%
Pseudoplastic rheology
38%
Bingham plastic rheology
25%
Dilatant rheology
6%
Casson body
What do you mean by ‘scale-up’?
Anonymous Quiz
11%
Decreasing the scale of fermentation
63%
Increasing the scale of fermentation
5%
Decreasing the rate of agitation
21%
Increasing the rate of fermentation
Which of the following factors are not involved in the scale-up process?
Anonymous Quiz
45%
Inoculum development
25%
Sterilization
15%
Temperature
15%
Medium design
Given below is a graphical representation of the scale-up window. What do the x and y-axis denote?
Anonymous Quiz
36%
y – agitation, x – aeration
50%
y – aeration, x – agitation
14%
y – KLa, x – time
0%
y – time, x – KLa
What do you mean by ‘scale-down’?
Anonymous Quiz
76%
Decreasing the scale of fermentation
18%
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
55%
Lactic acid fermentation
41%
Alcohol fermentation
5%
Pyruvic fermentation
0%
Acrylic fermentation
Which of the following is used to pack columns in adsorption chromatography?
Anonymous Quiz
35%
Carbon
47%
Silica gel
12%
Potassium hydroxide
6%
Aluminium oxide
😱1
Which of the following stationary phase is not used in gel filtration chromatography?
Anonymous Quiz
37%
Sephadex
16%
Sephacryl
37%
Bio-Gel
11%
Resin beads
Chromatography is used to separate ____________
Anonymous Quiz
74%
Complex mixture compounds
21%
Simple mixtures
5%
Viscous mixtures
0%
Halogens
The Rf value is the ratio of distance travelled by solvent to the distance travelled by the solute.
Anonymous Quiz
75%
True
25%
False
Which of the following is not a factor to investigate in a site survey?
Anonymous Quiz
40%
BOD/COD
13%
Sterility
13%
Colour
33%
Radioactivity
Which of the following is a primary treatment?
Anonymous Quiz
47%
Sedimentation
26%
Activated sludge
16%
Sand filters
11%
Microstrainers
Which is the use of comminutors?
Anonymous Quiz
69%
To reduce the size of particles
13%
To remove the grit
13%
To remove large particles
6%
To remove small particles
Which of the following is used to grow anchorage-dependent cells?
Anonymous Quiz
13%
Airlift fermenter
38%
Tower fermenter
25%
Hollow fibre chamber
25%
Perfusion bioreactor