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MCQs

Total Questions : 143 | Page 12 of 15 pages
Question 111. Consider a saturated liquid-vapour mixture, if the liquid flow rate inside the enriching and the stripping section of a fractionator is 50 and 40 mol/hr. Also the feed rate is 10 mol/hr. Find the feed condition.
  1.    Saturated vapour
  2.    Saturated liquid
  3.    Superheated vapour
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Saturated liquid
Answer: (b).Saturated liquid
Question 112. At what feed condition the slope of the flash vaporization line becomes 0?
  1.    Saturated vapour
  2.    Saturated liquid
  3.    Superheated vapour
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Saturated vapour
Answer: (a).Saturated vapour
Question 113. In an operation the slope of the q-line is found to be 0; then the enthalpy of feed equals enthalpy of _____________
  1.    Liquid
  2.    Vapour
  3.    Mixture
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Vapour
Answer: (b).Vapour
Question 114. In Azeotropic distillation __________ remains low.
  1.    Heat
  2.    Volatility
  3.    Relative volatility
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Relative volatility
Answer: (c).Relative volatility
Question 115. If the feed enters the distillation column at its dew point, then the slope of the Flash vaporization operating line is
  1.    0
  2.    1
  3.    Between 0 and 1
  4.    Infinity
 Discuss Question
Answer: Option A. -> 0
Answer: (a).0
Question 116. The point where the operating line and the equilibrium line meets in distillation methods is known as
  1.    Plait point
  2.    Q point
  3.    Pinch point
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Pinch point
Answer: (c).Pinch point
Question 117. The equilibrium composition of liquid and vapour in a feed can be identified by,
  1.    intersection of q line with equilibrium line
  2.    intersection of q line with operating line
  3.    intersection of operating line with equilibrium line
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> intersection of q line with equilibrium line
Answer: (a).intersection of q line with equilibrium line
Question 118. Find the distillation preferred for the binary mixture having component A and B with vapour pressure 360mmHg and 355mmHg.
  1.    Multi-component distillation
  2.    Reactive distillation
  3.    Azeotropic distillation
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Azeotropic distillation
Answer: (c).Azeotropic distillation
Question 119. By adding entrainer or solvent one of the component’s _________ gets reduced.
  1.    Boiling point
  2.    Bubble point
  3.    Dew point
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Boiling point
Answer: (a).Boiling point
Question 120. Will it possible to separate the mixture having relative volatility value 2 with azeotropic distillation.
  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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