Fluidization Engineering Questions and Answers – Entrainment at or Above the TDH-Single Size of Solids

This set of Fluidization Engineering Question Bank focuses on “Entrainment at or Above the TDH-Single Size of Solids”.

1. Which is the best form to describe TDH?
a) Transport disengaging height
b) Total diameter height
c) Total diameter holdup
d) None of the mentioned
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2. How to distinguish between Entrainment and Elutrition?
a) Based on segregation of particles
b) Based on velocity of gas
c) Based on height of reactor
d) All of the mentioned
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3. At what velocity entrainment of particles in the fluidized bed takes place?
a) At minimum fluidization velocity
b) At terminal velocity
c) More than terminal velocity
d) At superficial velocity
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4. Which investigator worked on elutrition of two components in batch operation?
a) Leva
b) Zenz and Weil
c) Lewis and Lang
d) Sanari and Kunii
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5. Which investigator worked on elutrition of FCC catalyst in batch operation?
a) Leva
b) Zenz and Weil
c) Lewis and Lang
d) Sanari and Kunii
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6. Which investigator worked on elutrition of one components in batch operation?
a) Leva
b) Zenz and Weil
c) Lewis and Lang
d) Sanari and Kunii
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7. Which investigator worked on elutrition of multi-components in batch operation?
a) Leva
b) Zenz and Weil
c) Lewis and Lang
d) Sanari and Kunii
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8. What is the range of size of particles to be entrained?
a) 0.06-0.08
b) 0.1-1.0
c) 0.05-0.10
d) All of the mentioned
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9. Which type of materials are used to experiment the elutrition of particles?
a) Sand
b) FCC catalyst
c) Glass spheres
d) All of the mentioned
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10. Which type of distributors are used to experiment the elutrition of particles?
a) Filter cloth
b) Perforated plate
c) Grid
d) All of the mentioned
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