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MCQs

Total Questions : 56 | Page 2 of 6 pages
Question 11. The solvent used in the extraction should be more volatile.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 12. Find the pure solvent rate if the feed ( F= 100 kmol/hr) composition is 0.65 and mixture solute composition is 0.5.
  1.    10 kmol/hr
  2.    20 kmol/hr
  3.    30 kmol/hr
  4.    40 kmol/hr
 Discuss Question
Answer: Option C. -> 30 kmol/hr
Answer: (c).30 kmol/hr
Question 13. The change of solubility by adding other component gives rise to binodal solubility curve.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 14. The system becomes solutropic if the tie line inside the binodal solubility curves becomes_________
  1.    Vertical
  2.    Horizontal
  3.    Straight
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Horizontal
Answer: (b).Horizontal
Question 15. The extraction compositions in equilibrium are represented by equilateral triangle whose coordinates are known as
  1.    Isobar
  2.    Isotrope
  3.    Isotherm
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Isotherm
Answer: (c).Isotherm
Question 16. Find the mixture composition of feed and pure solvent if the ratio of solvent to feed rate is 0.5 and the feed composition is 0.5.
  1.    0.5
  2.    0.25
  3.    0.33
  4.    0.4
 Discuss Question
Answer: Option C. -> 0.33
Answer: (c).0.33
Question 17. The plait point is the ____ tie line of the binodal curve.
  1.    Last
  2.    First
  3.    Middle
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Last
Answer: (a).Last
Question 18. Find the Distribution coefficient if equilibrium solute concentration in extract is 0.75 and the solute concentration in Raffinate is 0.6.
  1.    1.25
  2.    0.8
  3.    1
  4.    0
 Discuss Question
Answer: Option A. -> 1.25
Answer: (a).1.25
Question 19. Separation is not possible at plait point.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 20. The separation is possible if the solute concentration in both extract and raffinate are same.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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