Fluidization Engineering MCQ

Test your knowledge with important Fluidization Engineering MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Fluidization Engineering MCQs at Bissoy

• Total entrainment rate= SUM(entrainment rate of particle size*fraction of that size in bed) , true or false?
  ক

  True

  খ

  False

  গ

  10. Total entrainment rate= SUM(entrainment rate of particle size*fraction of that size in be

  ঘ

  , true or false? a) True b) False
• For particles to not reach the TDH, what is the condition required?
  ক

  Ut<Uo

  খ

  Ut>Uo

  গ

  Ut=Uo

  ঘ

  Ut<=Uo
• How does the introduction of internals in the bed help in elutrition?
  ক

  Separate big size particles

  খ

  Separate small size particles

  গ

  Breaks large particles

  ঘ

  None of the mentioned
• Based on which property the solids get separated while elutrition?
  ক

  Size

  খ

  Shape

  গ

  Density

  ঘ

  All of the mentioned
• From above figure, how decrease in pressure is affecting the velocity of solid particles?
  ক

  Decreases

  খ

  Increases

  গ

  No change

  ঘ

  Fluctuating
• From above figure, how increase in pressure is affecting the velocity of solid particles?
  ক

  Decreases

  খ

  Increases

  গ

  No change

  ঘ

  Fluctuating
• From above figure, what is the diameter of particles with respect to ‘E'(Hint: Catalyst)?
  ক

  0.051 mm

  খ

  0.074 mm

  গ

  0.094 mm

  ঘ

  0.162 mm
• From above figure, what is the diameter of particles with respect to ‘C'(Hint: Glass sphere)?
  ক

  0.051 mm

  খ

  0.074 mm

  গ

  0.094 mm

  ঘ

  0.162 mm
• From above figure, what is the diameter of particles with respect to ‘B'(Hint: Glass sphere)?
  ক

  0.051 mm

  খ

  0.074 mm

  গ

  0.094 mm

  ঘ

  0.162 mm
• From above figure, what is the diameter of particles with respect to ‘A'(Hint: Glass sphere)?
  ক

  0.051 mm

  খ

  0.074 mm

  গ

  0.094 mm

  ঘ

  0.162 mm
• Which type of distributors are used to experiment the elutrition of particles?
  ক

  Filter cloth

  খ

  Perforated plate

  গ

  Grid

  ঘ

  All of the mentioned
• Which type of materials are used to experiment the elutrition of particles?
  ক

  Sand

  খ

  FCC catalyst

  গ

  Glass spheres

  ঘ

  All of the mentioned
• What is the range of size of particles to be entrained?
  ক

  0.06-0.08

  খ

  0.1-1.0

  গ

  0.05-0.10

  ঘ

  All of the mentioned
• Which investigator worked on elutrition of multi-components in batch operation?
  ক

  Leva

  খ

  Zenz and Weil

  গ

  Lewis and Lang

  ঘ

  Sanari and Kunii
• Which investigator worked on elutrition of one components in batch operation?
  ক

  Leva

  খ

  Zenz and Weil

  গ

  Lewis and Lang

  ঘ

  Sanari and Kunii
• Which investigator worked on elutrition of FCC catalyst in batch operation?
  ক

  Leva

  খ

  Zenz and Weil

  গ

  Lewis and Lang

  ঘ

  Sanari and Kunii
• Which investigator worked on elutrition of two components in batch operation?
  ক

  Leva

  খ

  Zenz and Weil

  গ

  Lewis and Lang

  ঘ

  Sanari and Kunii
• At what velocity entrainment of particles in the fluidized bed takes place?
  ক

  At minimum fluidization velocity

  খ

  At terminal velocity

  গ

  More than terminal velocity

  ঘ

  At superficial velocity
• How to distinguish between Entrainment and Elutrition?
  ক

  Based on segregation of particles

  খ

  Based on velocity of gas

  গ

  Based on height of reactor

  ঘ

  All of the mentioned
• Which is the best form to describe TDH?
  ক

  Transport disengaging height

  খ

  Total diameter height

  গ

  Total diameter holdup

  ঘ

  None of the mentioned
• What is the fluidizing velocity range for drying of fine coal with fluidized bed?
  ক

  3.7-4.3 m/s

  খ

  4.3-4.9 m/s

  গ

  4.9-5.5 m/s

  ঘ

  5.5-6-1 m/s
• Which arrangement is fabricated in order to prevent the solids pass through the distributor?
  ক

  Orifice

  খ

  Nozzle

  গ

  Sintered

  ঘ

  All of the mentioned
• What is the approximate pressure drop across the orifice distributor?
  ক

  10%

  খ

  15%

  গ

  20%

  ঘ

  5%
• What is the range of nozzle opening in the roasting of sulphide ore?
  ক

  0.4-0.6 cm

  খ

  1.2-1.5 cm

  গ

  3.8-5.1 cm

  ঘ

  None of the mentioned
• What is range of orifice diameter in the distributor in FCC?
  ক

  3.8-5.1 cm

  খ

  1.2-3.5 cm

  গ

  5.5-7.9 cm

  ঘ

  None of the mentioned
• Which type of distributor reduces channelling and slugging to maximum extent?
  ক

  Single orifice plate

  খ

  Multiple orifice plate

  গ

  Nozzle plate

  ঘ

  Sintered plate
• In case of a heavy bed, which type of distributor can withstand its weight?
  ক

  Flat

  খ

  Convex

  গ

  Concave

  ঘ

  Concavo-convex
• Which type of distributor provides the best quality for fluidization?
  ক

  Single orifice plate

  খ

  Multiple orifice plate

  গ

  Nozzle plate

  ঘ

  Sintered plate
• Air is introduced in the bed to fluidize the bed in the bubble form, true or false?
  ক

  True

  খ

  False
• Which kind of fluid is included to obtain smooth fluidization?
  ক

  Water

  খ

  Air

  গ

  Oxygen

  ঘ

  Nitrogen