Boilers MCQ

Test your knowledge with important Boilers MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Boilers MCQs on Bissoy. Bissoy App

• A reboiler can act as a _________
  ক

  Evaporator only

  খ

  Condenser only

  গ

  Both evaporator and condenser

  ঘ

  Heat exchanger
• The kettle reboiler gives the flexibility to be used at _____________ pressure.
  ক

  Low

  খ

  Both low and high

  গ

  High

  ঘ

  Very High
• The shell in Kettle reboiler is commonly known as _____________
  ক

  TEMA K-Shell

  খ

  Shell and Tube Heat exchangers

  গ

  TENA L-shell

  ঘ

  ATEMA M-Shell
• The heat flux in kettle reboilers are _______ the forced convection reboilers.
  ক

  More than

  খ

  Less than

  গ

  Equal to

  ঘ

  Much less than
• In a kettle reboiler, the hot fluid is in the ______ and the solution is in the _______
  ক

  Shell, Tube

  খ

  Tube, Shell

  গ

  Bed, Column

  ঘ

  Column, bed
• If the calculated hcal is greater than the maximum heat transfer co-efficient of say arbitrary value of 300 Btu/h.ft2℉ for organics and 1000 Btu/h.ft2℉ for water, then what should we do?
  ক

  Take hcal > 300 Btu/h.ft2℉ for organics and hcal < 1000 Btu/h.ft2 ℉ for water

  খ

  Take hcal= 300 Btu/h.ft2℉ for organics and hcal = 1000 Btu/h.ft2 ℉ for water

  গ

  Take hcal > 300 Btu/h.ft2℉ for organics and hcal > 1000 Btu/h.ft2 ℉ for water

  ঘ

  Take hcal > 300 Btu/h.ft2℉ for organics and hcal > 1000 Btu/h.ft2 ℉ for water
• Kettle reboilers have low heat transfer rate than other types as there is high liquid circulation and hence appropriate for fouling fluids.
  ক

  True

  খ

  False
• The calculation of heat transfer coefficients in kettle type reboilers is similar to that of ______________
  ক

  Double pipe heat exchanger

  খ

  Shell and Tube Heat exchangers

  গ

  Plate type heat exchanger

  ঘ

  Packed bed HE
• In the design of Kettle reboiler given by Kern for isothermal boiling, it is assumed that the degree of sub-cooling and super-heating of the cold fluid is ___________
  ক

  Negligible

  খ

  Infinity

  গ

  100

  ঘ

  10
• Kettle reboiler is suitable for heat sensitive materials as it has low residence time.
  ক

  True

  খ

  False
• Kettle type reboilers have _______ residence time.
  ক

  High

  খ

  Infinity

  গ

  Low

  ঘ

  Zero
• The vaporisation rate in a kettle reboiler can be reached as high as _________ of the feed.
  ক

  80%

  খ

  90%

  গ

  70%

  ঘ

  50%
• Kettle reboiler is also called a ___________ reboiler.
  ক

  Thermosyphon

  খ

  Submerged bundle

  গ

  Internal

  ঘ

  Shell and tube
• Which one of the following uses a similar type shell and tube heat exchanger with an oversized shell?
  ক

  Flash reboiler

  খ

  Kettle reboiler

  গ

  Vertical Thermosyphon

  ঘ

  Horizontal Thermosyphon
• Which one of the following reboiler is best suited for high vaporization rate up to about 80% of the feed?
  ক

  Vertical thermosyphon reboiler

  খ

  Kettle Reboilers

  গ

  Horizontal thermosyphon reboiler

  ঘ

  Flash Reboilers
• In a vertical thermosyphon re-boiler, it is due to the __________ difference that the circulation in the liquid occurs, between vapour-liquid mixture from the re-boiler and the liquid through the down-comer to the re-boiler.
  ক

  Density

  খ

  Pressure

  গ

  Temperature

  ঘ

  Concentration
• In horizontal thermosyphon natural convection reboiler, the solution is heated in the shell with the hot fluid in the tubes.
  ক

  True

  খ

  False
• In vertical thermosyphon natural convection reboiler, the solution is heated in the shell with the hot fluid in the tubes.
  ক

  True

  খ

  False
• The boiling occurs inside the tubes in ___________ thermosyphon reboiler and inside shell in ____________ thermosyphon reboiler.
  ক

  Vertical, Horizontal

  খ

  Horizontal, vertical

  গ

  Vertical, vertical

  ঘ

  Horizontal, Horizontal
• Recognize the following reboiler?
  ক

  Forced Convection Reboiler

  খ

  Natural convection Reboiler

  গ

  Kettle reboiler

  ঘ

  Fire tube reboiler
• Which one of the following is best suited for operation of fouling as well as sensitive fluids?
  ক

  Vertical Thermosyphon reboiler

  খ

  Horizontal thermosyphon reboiler

  গ

  Forced circulation reboilers

  ঘ

  Kettle reboiler
• In which one of the following reboilers, furnace is used to heat the condensate?
  ক

  Kettle Reboilers

  খ

  Fired reboilers

  গ

  Vertical Thermosyphon reboiler

  ঘ

  Horizontal thermosyphon reboiler
• The distillation procedure occurring by using a reboiler is known as ___________
  ক

  Gas distillation

  খ

  Normal distillation

  গ

  Steam distillation

  ঘ

  Oil distillation
• Which one of the following reboiler uses a 1-2shell and tube heat exchanger?
  ক

  Kettle reboiler

  খ

  Vertical Thermosyphon reboiler

  গ

  Flash reboiler

  ঘ

  Horizontal thermosyphon reboiler
• Which one of the following reboiler uses a shell and tube heat exchanger?
  ক

  Kettle reboiler

  খ

  Vertical Thermosyphon reboiler

  গ

  Flash reboiler

  ঘ

  Internal reboiler
• Which class of reboilers do not require pumps to pump the condensate back to the reboiler?
  ক

  Thermosyphon reboiler

  খ

  Flash reboiler

  গ

  Kettle reboiler

  ঘ

  Shell reboiler
• Which one of the following reboiler is a thermosyphon reboiler?
  ক

  Vertical

  খ

  Slanted

  গ

  Kettle

  ঘ

  Internal
• The reboiler which has its heating system mounted directly to the distillation column is ____________
  ক

  Flash reboilers

  খ

  Internal re-boilers

  গ

  Kettle reboilers

  ঘ

  Horizontal thermosyphon reboiler
• The kettle type reboiler is attached to the main body of the distillation column.
  ক

  True

  খ

  False
• The simplest re-boiler can be named as _______________ with the boiler just below the distillation column.
  ক

  Flash reboilers

  খ

  Internal re-boilers

  গ

  Kettle reboilers

  ঘ

  Horizontal thermosyphon reboiler