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MCQs

Total Questions : 143 | Page 9 of 15 pages
Question 81. No further process required for _____________
  1.    Absorption
  2.    Extraction
  3.    Distillation
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Distillation
Answer: (c).Distillation
Question 82. Distillation is possible only if the solution components are_____________
  1.    Volatile
  2.    Non-volatile
  3.    Cryogenic
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Volatile
Answer: (a).Volatile
Question 83. Consider a sugar solution[ Sugar + Water]; On vaporization water only evaporate since sugar is________
  1.    Volatile
  2.    Non-Volatile
  3.    Cryogenic
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Non-Volatile
Answer: (b).Non-Volatile
Question 84. If there is no reflux to a fractionating column then
  1.    Large condenser size is needed
  2.    Less reboiler size needed
  3.    Minimum number of trays
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Large condenser size is needed
Answer: (a).Large condenser size is needed
Question 85. McCabe –Thiele method excludes ________ information.
  1.    Entropy
  2.    Enthalpy
  3.    Flow rate
  4.    Number of theoretical stages
 Discuss Question
Answer: Option B. -> Enthalpy
Answer: (b).Enthalpy
Question 86. After leaving the condenser if the liquid is at bubble point then which of the following is correct?
  1.    Same concentration of distillate and reflux
  2.    Different concentration of distillate and reflux
  3.    No latent heat is removed
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Same concentration of distillate and reflux
Answer: (a).Same concentration of distillate and reflux
Question 87. Non-equimolal flow rates are maintained in the fractionator obeying McCabe-Thiele method.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 88. Heat losses are avoided in McCabe-Thiele method.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 89. The slope of the operating line of the enriching section is R/R+1.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 90. Find the slope of the operating line of the top section of Fractionator if Reflux ratio is 2.
Hint: use McCabe Thiele method is applicable
  1.    0.57
  2.    0.67
  3.    0.77
  4.    0.87
 Discuss Question
Answer: Option B. -> 0.67
Answer: (b).0.67

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