Chemical Engineering MCQs

6108 MCQs  (Page 243 of 611)

Attempt Chemical Engineering Quiz
_______________ mill is normally used for grinding of talc?
A. Tube
B. Compartment
C. Ring-roll
D. Pebble
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For achieving maximum capacity of the ball mill, the ball charge should be equal to about ______________ percent of the ball mill volume?
A. 10
B. 25
C. 50
D. 75
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Which of the following can be most effectively used for clarification of lube oil and printing ink ?
A. Sparkler filter
B. Pre-coat filter
C. Disc-bowl centrifuge
D. Sharpies super-centrifuge
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Half the angle of nip, (α), for a roll crusher is given by (where, dr, dp and df are diameters of crushing rolls, feed particles and rolls gap respectively) ?
A. Cos α = (dr + dp)/(dr + df)
B. Cos α = (dr + df)/(dr + dp)
C. Tan α = (dr + dp)/(dr + df)
D. Sin α = (dr + dp)/(dr + df)
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Mixer used for rubber compounding is__________________?
A. Mixer-extruder
B. Banbury internal mixer
C. Muller mixer
D. Pug mill
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Froth floatation is the most suitable for treating ____________________?
A. Iron ores
B. Sulphide ores
C. Quartzite
D. None of these
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Which of the following must be stored in silos and not in open yard ?
A. Coke breeze
B. High v.m. bituminous coal
C. Sand
D. None of these
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Sulphuric acid mist is arrested by using a ____________ scrubber?
A. Packed wet
B. Hollow wet
C. Venturi
D. Co-current
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Addition of filter aid to the slurry before filtration is done to _______________ of the cake?
A. Increase the porosity
B. Increase the compressibility co-efficient
C. Decrease the porosity
D. Decrease the compressibility co-efficient
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Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m3) ?
A. 3.6 w.d.v.ρ
B. 3.6 w.d.v
C. 3.6 w.v.ρ
D. 3.6 d.v.ρ
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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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