Exercise: Sterilization

Questions for: Sterilization

Model proposed by the Friedlander, correlating the air filtration efficiency by impaction can be expressed as (where NSt is the Stokes number)
A:
ηimp = 0.075NSt1.2
B:
ηimp = 0.75NSt1.2
C:
ηimp = 0.25NSt1.2
D:
ηimp = 0.025NSt1.2
Answer: A
No answer description is available. Let's discuss.
📖
📝
💎
👁ïļ
The value of K
A:
increases with increase in air velocity
B:
decreases with increase in air velocity
C:
increases to an optimum with increase in air velocity and decreases on further increase of air velocity
D:
none of these
Answer: C
No answer description is available. Let's discuss.
📖
📝
💎
👁ïļ
The X90 value for a filtration system is
A:
the time required to reduce microbial population by 90%
B:
the time required to traverse survivor curve by one log cycle.
C:
the depth required to reduce population by 90%
D:
the depth of the filter required to reduce population by 99%
Answer: C
No answer description is available. Let's discuss.
📖
📝
💎
👁ïļ
The typical size of particles collected by diffusion mechanism is
A:
<0.25Ξm
B:
<0.5Ξm
C:
<0.75Ξm
D:
<1Ξm
Answer: B
No answer description is available. Let's discuss.
📖
📝
💎
👁ïļ
Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component 'n', cn is concentration of'n')
A:
Jn = -dcn/dx
B:
Jn = dcn/dx
C:
Jn = -D dcn/dx
D:
Jn = D dcn/dx
Answer: C
No answer description is available. Let's discuss.
📖
📝
💎
👁ïļ
Ad Slot (Above Pagination)
Quiz