By increasing the feed rate of the liquid in tubular centrifuge the performance is increased.(a) True(b) FalseI got this question by my college director while I was bunking the class.My question is based upon Centrifugation topic in division Unit Operations of Bioprocess Engineering

By increasing the feed rate of the liquid in tubular centrifuge the pe

1.	By increasing the feed rate of the liquid in tubular centrifuge the performance is increased.(a) True(b) FalseI got this question by my college director while I was bunking the class.My question is based upon Centrifugation topic in division Unit Operations of Bioprocess Engineering
Answer» The correct option is (b) False Easy EXPLANATION: As the feed rate is increased the LIQUID layer moving up the wall of the centrifuge becomes thicker; this reduces the performance of the centrifuge by increasing the distance a particle must travel to REACH the wall. Liquid from the feed spills over a weir at the top of the bowl. When the thickness of sediment COLLECTING in the bowl reaches the position of the liquid-overflow weir, SEPARATION efficiency declines rapidly. This limits the capacity of the centrifuge.

Discussion

No Comment Found

Related InterviewSolutions

What type of filter does not come under the Membrane filters?(a) Ultra filtration(b) Microfiltration(c) Precoat (filter aid) filtration(d) NanofiltrationThis question was posed to me by my college professor while I was bunking the class.I need to ask this question from Filtration in chapter Unit Operations of Bioprocess Engineering
Which type of mechanism is applicable to chromatography?(a) Absorption and Desorption(b) Adsorption and Absorption(c) Adsorption and Desorption(d) Adsorption and DiffusionI have been asked this question in exam.The question is from Chromatography topic in portion Unit Operations of Bioprocess Engineering
From the following which is the type of filtration centrifuge?(a) Screen/scroll centrifuge(b) Tubular centrifuge(c) Decanter centrifuge(d) Separator centrifugeI got this question by my school principal while I was bunking the class.My query is from Centrifugation in section Unit Operations of Bioprocess Engineering
Which of the following is not a type of centrifugation?(a) Hydro cyclone(b) Tubular centrifuge(c) Microfiltration(d) Disk stack separatorThis question was addressed to me in an online interview.Query is from Centrifugation in section Unit Operations of Bioprocess Engineering
Which of the following statements regarding the physical adsorption of a gas on surface of solid is not correct?(a) On increasing temperature, adsorption increases continuously(b) Enthalpy changes are negative(c) Adsorption is specific(d) It is reversible in natureI got this question by my school teacher while I was bunking the class.This intriguing question comes from Adsorption topic in section Unit Operations of Bioprocess Engineering
What is rate-zonal centrifugation?(a) Based on separation of particles by mass(b) Based on separation of particles by density(c) Based on separation of particles on solubility(d) Based on separation of particles on sizeI have been asked this question in an international level competition.Query is from Centrifugation topic in portion Unit Operations of Bioprocess Engineering
Which of the following is used as a media for density gradient?(a) Agarose(b) Ficoll(c) Luria broth(d) Propylene glycolThis question was addressed to me during an online exam.This interesting question is from Centrifugation topic in chapter Unit Operations of Bioprocess Engineering
Which of the following is used in uranium enrichment?(a) Tubular centrifuge(b) Disk-stack centrifuge(c) Gas centrifuge(d) Zippe-type centrifugeThis question was posed to me in examination.I'd like to ask this question from Centrifugation topic in chapter Unit Operations of Bioprocess Engineering
Which of the following centrifugation is used to separate certain organelles from whole cell?(a) Rate-zonal centrifugation(b) Normal centrifugation(c) Differential centrifugation(d) Isopycnic centrifugationThe question was asked in exam.This is a very interesting question from Centrifugation in section Unit Operations of Bioprocess Engineering
For an adsorbant-adsorbate system obeying the Langmuir adsorption isotherm, b = 0.48 bar^-1 and p = 0.16 bar^-1. At what pressure will 50% of the surface be covered?(a) 0.05 bar(b) 0.07 bar(c) 0.08 bar(d) 0.04 barThe question was posed to me in semester exam.The query is from Adsorption topic in division Unit Operations of Bioprocess Engineering

By increasing the feed rate of the liquid in tubular centrifuge the performance is increased.(a) True(b) FalseI got this question by my college director while I was bunking the class.My question is based upon Centrifugation topic in division Unit Operations of Bioprocess Engineering

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment