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MCQs

Total Questions : 143 | Page 1 of 15 pages
Question 1. The light key components are__________
  1.    More volatile
  2.    Less volatile
  3.    Non volatile
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> More volatile
Answer: (a).More volatile
Question 2. Find the reflux ratio if the feed , residue and reflux rate is 100, 40 and 50 mole/hr.
  1.    1.25
  2.    0.83
  3.    1.5
  4.    1
 Discuss Question
Answer: Option B. -> 0.83
Answer: (b).0.83
Question 3. The Enriching section operating line intercept at the origin in McCabe-Thiele method when
  1.    Reflux ratio = Zero
  2.    Reflux ratio= Infinity
  3.    Reflux ratio= One
  4.    Reflux ratio= 1.5 to 2 times Reflux minimum
 Discuss Question
Answer: Option B. -> Reflux ratio= Infinity
Answer: (b).Reflux ratio= Infinity
Question 4. The residue has a more heavy key component.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 5. If the feed enters the distillation column at its dew point, then the slope of the Flash vaporization operating line is
  1.    Infinity
  2.    0
  3.    1
  4.    Between 0 and 1
 Discuss Question
Answer: Option B. -> 0
Answer: (b).0
Question 6. Find the heat removed by the condenser if the net heat out of the condenser is 25000 J and the total moles are 25.
  1.    1000 J
  2.    10000 J
  3.    5000 J
  4.    2000 J
 Discuss Question
Answer: Option A. -> 1000 J
Answer: (a).1000 J
Question 7. The fictitious stream is the difference in the flow rates of the nth tray.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 8. Fractionator(s) required for separating binary azeotropic mixture is
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 9. Find the flow rate of liquid entering into the enriching section if the internal reflux ratio is 1.5 times min. Given minimum reflux ratio is 0.95 and the gas flow rate is 35 mol/hr.
  1.    49.87 mol/hr
  2.    22.167 mol/hr
  3.    55.26 mol/hr
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> 49.87 mol/hr
Answer: (a).49.87 mol/hr
Question 10. Ponchon Savorit method do not include enthalpy concentration diagram.
  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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