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Fluidization Engineering
Fluidization Engineering Basic
Quiz 1
Solution
Q.1.
Which kind of fluid is included to obtain smooth fluidization?
a) Water
b) Air
c) Oxygen
d) Nitrogen
Q.2.
Air is introduced in the bed to fluidize the bed in the bubble form, true or false?
a) True
b) False
Q.3.
Which type of distributor provides the best quality for fluidization?
a) Single orifice plate
b) Multiple orifice plate
c) Nozzle plate
d) Sintered plate
Q.4.
In case of a heavy bed, which type of distributor can withstand its weight?
a) Flat
b) Convex
c) Concave
d) Concavo-convex
Q.5.
Which type of distributor reduces channelling and slugging to maximum extent?
a) Single orifice plate
b) Multiple orifice plate
c) Nozzle plate
d) Sintered plate
Q.6.
What is range of orifice diameter in the distributor in FCC?
a) 3.8-5.1 cm
b) 1.2-3.5 cm
c) 5.5-7.9 cm
d) None of the mentioned
Q.7.
What is the range of nozzle opening in the roasting of sulphide ore?
a) 0.4-0.6 cm
b) 1.2-1.5 cm
c) 3.8-5.1 cm
d) None of the mentioned
Q.8.
What is the approximate pressure drop across the orifice distributor?
a) 10%
b) 15%
c) 20%
d) 5%
Q.9.
Which arrangement is fabricated in order to prevent the solids pass through the distributor?
a) Orifice
b) Nozzle
c) Sintered
d) All of the mentioned
Q.10.
What is the fluidizing velocity range for drying of fine coal with fluidized bed?
a) 3.7-4.3 m/s
b) 4.3-4.9 m/s
c) 4.9-5.5 m/s
d) 5.5-6-1 m/s
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