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MCQs

Total Questions : 270 | Page 21 of 27 pages
Question 201. The filtered water that has been treated by a membrane filter is called _____________
  1.    Permeate
  2.    Concentrate
  3.    Reject
  4.    Pulp
 Discuss Question
Answer: Option A. -> Permeate
Answer: (a).Permeate
Question 202. Which one of the following is the name of the process of reversing the direction of water flow through the filter using filtered water?
  1.    back pulse
  2.    reverse flow
  3.    air pressure
  4.    front pressure
 Discuss Question
Answer: Option B. -> reverse flow
Answer: (b).reverse flow
Question 203. Which of the following remains the primary use of membrane filtration in water treatment?
  1.    Desalination of salt water to produce potable water
  2.    A pretreatment step in water treatment
  3.    Filtration of surface or ground water under the direct influence of surface water
  4.    Pre heating
 Discuss Question
Answer: Option A. -> Desalination of salt water to produce potable water
Answer: (a).Desalination of salt water to produce potable water
Question 204. The flow rate through the membrane filter itself expressed as a gallon per square foot per day is called?
  1.    Permeate
  2.    Head loss
  3.    Flux
  4.    Overhead
 Discuss Question
Answer: Option C. -> Flux
Answer: (c).Flux
Question 205. Which of the following are different forms of membrane filter construction?
I) Hollow filter
II) TMP
III) Spiral wound
IV) Ceramic
V) Cross flow
VI) Electro dialysis
  1.    I), III) IV) and VI)
  2.    I),II),III) and IV)
  3.    I) and II)
  4.    III) and IV)
 Discuss Question
Answer: Option A. -> I), III) IV) and VI)
Answer: (a).I), III) IV) and VI)
Question 206. Which of the following membrane separation technique would be most suitable for dehydration of whey in dairy industry?
  1.    Reverse osmosis
  2.    Nano filtration
  3.    Ultra filtration
  4.    Membrane filtration
 Discuss Question
Answer: Option A. -> Reverse osmosis
Answer: (a).Reverse osmosis
Question 207. The concentrate, the retained liquid is called ___________
  1.    Permeate
  2.    Retentate
  3.    Concentration factor
  4.    Diafilteration
 Discuss Question
Answer: Option B. -> Retentate
Answer: (b).Retentate
Question 208. _________ is a modification of ultra filtration in which water is added to the feed as filtration proceeds in order to wash out feed components which will pass through the membranes, basically lactose and minerals.
  1.    Permeate
  2.    Retentate
  3.    Concentration factor
  4.    Diafilteration
 Discuss Question
Answer: Option C. -> Concentration factor
Answer: (c).Concentration factor
Question 209. The term for deposition of solids on the membrane, irreversible during processing is?
  1.    Feed
  2.    Flux
  3.    Membrane fouling
  4.    Permeate
 Discuss Question
Answer: Option C. -> Membrane fouling
Answer: (c).Membrane fouling
Question 210. What is the volume reduction achieved by concentration, i.e. the ratio of the initial volume of feed to the final volume of concentrate called?
  1.    Permeate
  2.    Retentate
  3.    Concentration factor
  4.    Diafilteration
 Discuss Question
Answer: Option C. -> Concentration factor
Answer: (c).Concentration factor

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