Fluidization Engineering Questions and Answers – Entrainment at or Above the …

This set of Fluidization Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Entrainment at or Above the TDH-Size Distribution of Solids”.

1. From above figure, what is the diameter of particles with respect to ‘A'(Hint: Glass sphere)?
a) 0.051 mm
b) 0.074 mm
c) 0.094 mm
d) 0.162 mm
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2. From above figure, what is the diameter of particles with respect to ‘B'(Hint: Glass sphere)?
a) 0.051 mm
b) 0.074 mm
c) 0.094 mm
d) 0.162 mm
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3. From above figure, what is the diameter of particles with respect to ‘C'(Hint: Glass sphere)?
a) 0.051 mm
b) 0.074 mm
c) 0.094 mm
d) 0.162 mm
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4. From above figure, what is the diameter of particles with respect to ‘E'(Hint: Catalyst)?
a) 0.051 mm
b) 0.074 mm
c) 0.094 mm
d) 0.162 mm
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5. From above figure, how increase in pressure is affecting the velocity of solid particles?
a) Decreases
b) Increases
c) No change
d) Fluctuating
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6. From above figure, how decrease in pressure is affecting the velocity of solid particles?
a) Decreases
b) Increases
c) No change
d) Fluctuating
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7. Based on which property the solids get separated while elutrition?
a) Size
b) Shape
c) Density
d) All of the mentioned
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8. How does the introduction of internals in the bed help in elutrition?
a) Separate big size particles
b) Separate small size particles
c) Breaks large particles
d) None of the mentioned
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9. For particles to not reach the TDH, what is the condition required?
a) Ut<Uo
b) Ut>Uo
c) Ut=Uo
d) Ut<=Uo
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10. Total entrainment rate= SUM(entrainment rate of particle size*fraction of that size in bed) , true or false?
a) True
b) False
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