Chemical Engineering MCQs

6108 MCQs  (Page 242 of 611)

Attempt Chemical Engineering Quiz
Pine oil and Cresylic acid are used as ______________ in the froth floatation process?
A. Frother
B. Collector
C. Depressor
D. Conditioner
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Energy requirement (per unit mass of material crushed/ground) is highest for__________________?
A. Jaw crusher
B. Rod mill
C. Ball mill
D. Fluid energy mill
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Gold ore concentration is mostly done using___________________?
A. Jigging
B. Tabling
C. Froth floatation
D. Elutriation
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Screw conveyors are________________?
A. Run at very high rpm
B. Suitable for sticky materials
C. Suitable for highly abrasive materials
D. All a., b. and c.
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A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is_____________?
A. 0.1
B. 0.4
C. 0.6
D. None of these
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Power consumption during turbulent flow in agitation tank is proportional to the ______________ of the liquid?
A. Viscosity
B. Thermal conductivity
C. Surface tension
D. Density
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200 mesh screen means 200 openings per_____________________?
A. Cm2
B. Cm
C. Inch
D. Inch2
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Which of the following terminology is not used for size reduction of materials to fine sizes or powders ?
A. Comminution
B. Dispersion
C. Pulverisation
D. Compression
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The porosity of a compressible cake is _____________________?
A. Minimum at the filter medium
B. Minimum at the upstream face
C. Maximum at the filter medium
D. Same throughout the thickness of cake
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The most common filter aid is_________________?
A. Diatomaceous earth
B. Calcium silicate
C. Sodium carbonate
D. Silica gel
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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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