Chemical Engineering MCQs

6108 MCQs  (Page 229 of 611)

Attempt Chemical Engineering Quiz
Filtration capacity of a rotary drum vacuum filter depends upon the_______________?
A. Cake thickness
B. Characteristics of the feed slurry
C. Both a. & b.
D. Neither a. nor b.
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The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake)__________________?
A. ∝ δp
B. ∝ 1/ δp
C. ∝ √δp
D. Independent of δp
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Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid ?
A. Sand bed filter
B. Plate and frame filter press
C. Vacuum filter
D. Batch basket centrifuge
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A fluid energy mill is used for_________________?
A. Cutting
B. Grinding
C. Ultra grinding
D. Crushing
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Which of the following is a vacuum filter ?
A. Filter press
B. Rotary disc filter
C. Batch basket centrifuge
D. Tank filter (nutsche filter)
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Carbon black is pulverised in a_______________?
A. Hammer crusher
B. Ball mill
C. Roll crusher
D. Gyratory crusher
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Rittinger’s number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger’s number of a material indicates its________________?
A. Easier grindability
B. Poor grindability
C. High power consumption in grinding
D. None of these
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For efficient grinding, ball mills must be operated__________________?
A. At a speed less than the critical speed
B. At a speed more than the critical speed
C. At a speed equal to the critical speed
D. With minimum possible small balls
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For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter D. as_________________?
A. D
B. √d
C. D2
D. 1/d
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What is the reduction ratio in a fine crushing operation having following feed and product sizes ?
A. 0.5
B. 2
C. 5
D. 10
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Word of the Day
27 Jul
Widen
make or become wider.
چوڑا ہونا، کشادہ کرنے کا عمل

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