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MCQs

Total Questions : 32 | Page 2 of 4 pages
Question 11. For an air(A)-water vapour(B) mixture, the partial pressure of the air is 5 pa and the total pressure of the system is 15 pa. The absolute humidity in mass of air/mass of water vapour is
  1.    0.805
  2.    0.311
  3.    0.705
  4.    0.411
 Discuss Question
Answer: Option A. -> 0.805
Answer: (a).0.805
Question 12. In an operation, the enthalpy is similar throughout the initial and final condition such operation is
  1.    Adiabatic
  2.    Non-adiabatic
  3.    Isothermal
  4.    Non-isothermal
 Discuss Question
Answer: Option A. -> Adiabatic
Answer: (a).Adiabatic
Question 13. By differencing the temperature, heat added or removed is
  1.    Sensible heat
  2.    Latent heat
  3.    Heat of vaporization
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Sensible heat
Answer: (a).Sensible heat
Question 14. Mass absolute humidity is
  1.    Absolute humidity
  2.    Grosvenor humidity
  3.    Relative humidity
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> Grosvenor humidity
Answer: (b).Grosvenor humidity
Question 15. For an air(A)-water vapour(B) mixture, the partial pressure of the air is 5 pa and the total pressure of the system is 15 pa. The molal absolute humidity is
  1.    0.5
  2.    1
  3.    1.5
  4.    2
 Discuss Question
Answer: Option A. -> 0.5
Answer: (a).0.5
Question 16. Check whether we get approximately 80% saturation if the total pressure and the partial pressure of the gas mixture is 760 mmHg and 260 mmHg. Also, the vapour pressure is 300 mmHg.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 17. Find the dew point.Find The Dew Point.
  1.    X
  2.    Y
  3.    Z
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> X
Answer: (a).X
Question 18. For a better stage efficiency, must have large interfacial surface and low mass transfer co-efficient.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 19. At the gas temperature, the liquid is in equilibrium with vapour for ____________
  1.    Saturated gas
  2.    Unsaturated gas
  3.    Partially saturated gas
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Saturated gas
Answer: (a).Saturated gas
Question 20. The higher difference in pressure inside the tray tower cause
  1.    Flooding
  2.    Loading
  3.    Weeping
  4.    Dumping
 Discuss Question
Answer: Option A. -> Flooding
Answer: (a).Flooding

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