Transient Heating and Cooling MCQ

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• Recognize the heat exchanger.
  ক

  Jacketed Vessel

  খ

  Half coil jacketed Vessel

  গ

  Internal Coiled Vessel

  ঘ

  Shell and Tube Heat Exchanger
• What is the term Γ in the following equation? NRe Film = Reynolds number for the condensate film. NRe Film = 4Γ / μJ
  ক

  Condensate loading rate

  খ

  Condensate removing rate

  গ

  Vapour Removal rate

  ঘ

  Vapour Loading rate
• If the Nusselt Number for the jacket side is calculated then what is the definition of Dj? NNu = Nusselt number of jacket fluid = (hJ * DJ / kJ).
  ক

  Diameter of jacket tubes

  খ

  Equivalent cross flow diameter of the jacket

  গ

  Diameter of the vessel

  ঘ

  Difference of the diameter of jacket and vessel
• If ADC is the fouling deposit area on the vessel side, then what is its resistance?
  ক

  R = 1/hADC

  খ

  R = 1/hDCADC

  গ

  R = 1/hDCAT

  ঘ

  R = 1/hTADC
• What is the term N in the following equation? NRe = Reynolds number for agitated liquids = (LA2 × N × ρB / μB).
  ক

  Agitator Speed

  খ

  Number of turns in coil

  গ

  Number of turns in jacket coil

  ঘ

  Number of passes in jacket
• The resistance equation for the cold fluid is R = __________
  ক

  1/hcAc

  খ

  1/hcAT

  গ

  hcAc

  ঘ

  hcAT
• Recognize the following diagram.
  ক

  Jacketed Vessel

  খ

  Half coil Vessel

  গ

  Internal Coiled Vessel

  ঘ

  Shell and Tube Heat Exchanger