200 Best MCQs on downstream processing- biochemical engineering
Top 200 MCQs on downstream processing
This section contains MCQs/ Objective Type Questions of downstream processing for various competetive Exams like HPPSC HPSSC HPSSSB and other exams
Q1). Concentration polarization can be reduced further by
a).pre filtering the solution
b).reducing the flow rate per unit membrane surface area
c).back washing periodically
d).all of the above
Correct Answer:
all of the above
Explaination:
Q2). A system which require less solvent and produces a more concentrated extract phase, is desired with a
a).large distribution coefficients
b).small distribution coefficients
c).very small distribution coefficients
d).constant distribution coefficients
Correct Answer:
large distribution coefficients
Explaination:
Q3). The efficiency of cell disruption in a bead mill depends on the
a).concentration of the cells
b).amount and size of beads
c).type and rotational speed of agitation
d).all of these
Correct Answer:
all of these
Explaination:
Q4). A common filter medium is the cloth filter generally made of
a).canvas
b).synthetic fabrics
c).metal or glass fiber
d).all of these
Correct Answer:
all of these
Explaination:
Q5). An ion exchange resin is composed of
a).polymeric network
b).ionic functional groups
c).counter ions
d).all of these
Correct Answer:
all of these
Explaination:
Q6). Maintenance cost varies from
a).0-4% of the capital cost
b).12-16% of the capital cost
c).4-8% of the capital cost
d).8-12% of the capital cost
Correct Answer:
4-8% of the capital cost
Explaination:
Q7). The optimum wet solid content for the cell suspension for a bead mill is typically somewhere between
a).5-15% by volume
b).15-30% by volume
c).30-60% by volume
d).60-90% by volume
Correct Answer:
30-60% by volume
Explaination:
Q8). Filtration leaf test results indicate that the filtration rate of a protein product is 100 dry lbs/(ft^2 hr). What size production filter would be required to obtain 100 dry lbs of filter cake/hr?
a).1.54 ft^2
b).3.08 ft^2
c).65 ft^2
d).65 lbs/ ft^2.hr
Correct Answer:
1.54 ft^2
Explaination: