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MCQs

Total Questions : 32 | Page 3 of 4 pages
Question 21. In humidification the gas is ____________ in the liquid for the mass transfer to take part.
  1.    Soluble
  2.    Insoluble
  3.    Partially soluble
  4.    Inert
 Discuss Question
Answer: Option B. -> Insoluble
Answer: (b).Insoluble
Question 22. Humidification is a
  1.    Mass transfer operation
  2.    Heat transfer operation
  3.    Simultaneous heat and mass transfer
  4.    Neither mass and heat transfer operation
 Discuss Question
Answer: Option C. -> Simultaneous heat and mass transfer
Answer: (c).Simultaneous heat and mass transfer
Question 23. The humidity is represented in
  1.    Humidity chart
  2.    Psychometric chart
  3.    Psychometric chart or humidity chart
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 24. De-humidification is done in
  1.    Adiabatic temperature
  2.    Adiabatic saturated temperature
  3.    Adiabatic unsaturated temperature
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Adiabatic saturated temperature
Answer: (b).Adiabatic saturated temperature
Question 25. Say True or False.
I) Vapour- at superheated temperature
II) Gas – at condensation temperature
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 26. Guess the saturated molar absolute humidity of the gas(A.- Vapour(B. mixture at 100 degree Celsius. Vapour pressure of A is 300 mmHg and the total pressure is 760 mmHg.
  1.    0.39
  2.    0.65
  3.    0.60
  4.    Cannot determine
 Discuss Question
Answer: Option B. -> 0.65
Answer: (b).0.65
Question 27. Partial pressure equals vapour pressure if it is___________
  1.    Saturated
  2.    Unsaturated
  3.    Isothermal
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Saturated
Answer: (a).Saturated
Question 28. The system is unsaturated if partial pressure _________ equilibrium vapour pressure.
  1.    Less than
  2.    Greater than
  3.    Equals to
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Less than
Answer: (a).Less than
Question 29. The vapour pressure of the nitrogen gas is 400mmHg and the partial pressure is 300mmHg. Find the relative saturation.
  1.    75
  2.    133
  3.    100
  4.    50
 Discuss Question
Answer: Option A. -> 75
Answer: (a).75
Question 30. Consider a saturated gas(A.-vapour(B. mixture , if the absolute molal humidity is 0.265 and the total pressure= 760 mmHg. Find the vapour pressure of B.
  1.    149.21 mmHg
  2.    159.21 mmHg
  3.    169.21 mmHg
  4.    600.8 mmHg
 Discuss Question
Answer: Option D. -> 600.8 mmHg
Answer: (d).600.8 mmHg

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