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MCQs

Total Questions : 3241 | Page 321 of 325 pages
Question 3201. Which of the following remains constant during evaporative cooling process with recirculated water supply ?
  1.    Relative humidity
  2.    Partial pressure of vapour
  3.    Wet bulb temperature
  4.    None of these
 Discuss Question
Answer: Option C. -> Wet bulb temperature
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3202. Weight of 1 m3 of humid air as compared to 1 m3 of dry air, under the same conditions, is_________________?
  1.    Less
  2.    More
  3.    Same
  4.    Unpredictable
 Discuss Question
Answer: Option A. -> Less
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3203. Percentage saturation is _______________ the relative saturation?
  1.    Always smaller than
  2.    Always greater than
  3.    Not related to
  4.    None of these
 Discuss Question
Answer: Option A. -> Always smaller than
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3204. The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is_________________?
  1.    Natural draft cooling tower
  2.    Induced draft cooling tower
  3.    Spray chamber
  4.    None of these
 Discuss Question
Answer: Option C. -> Spray chamber
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3205. CO2 can be absorbed by____________________?
  1.    Hot cupric oxide
  2.    Heated charcoal
  3.    Cold Ca(OH)2
  4.    Alumina
 Discuss Question
Answer: Option B. -> Heated charcoal
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3206. The Knudsen diffusivity is dependent on the ______________________?
  1.    Molecular velocity only
  2.    Pore radius of the catalyst only
  3.    Molecular mean free path only
  4.    Molecular velocity and pore radius of the catalyst
 Discuss Question
Answer: Option D. -> Molecular velocity and pore radius of the catalyst
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3207. Overall efficiency of the distillation column is _____________________?
  1.    The ratio of number of ideal plates to actual plates
  2.    The ratio of number of actual plates to ideal plates
  3.    Same as the Murphree efficiency
  4.    Always more than the point efficiency
 Discuss Question
Answer: Option A. -> The ratio of number of ideal plates to actual plates
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3208. For a binary mixture with low relative volatility, continuous rectification to get pure products will require_____________________?
  1.    Low reflux ratio
  2.    Less number of trays
  3.    Small cross-section column
  4.    High reflux ratio
 Discuss Question
Answer: Option D. -> High reflux ratio
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3209. Critical humidity of a solid salt means the humidity_____________________?
  1.    Above which it will always become damp
  2.    Below which it will always stay dry
  3.    Both A. and B.
  4.    Above Which it will always become dry and below which it will always stay damp
 Discuss Question
Answer: Option C. -> Both A. and B.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3210. The binary diffusivity in gases does not depend upon the ___________________?
  1.    Pressure
  2.    Temperature
  3.    Nature of the components
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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