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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

The most common filter aid is_________________?
A Diatomaceous earth
B Calcium silicate
C Sodium carbonate
D Silica gel
Correct Answer: Diatomaceous earth
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
Correct Answer: Minimum at the filter medium
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
Correct Answer: Compression
200 mesh screen means 200 openings per_____________________?
A cm2
B cm
C inch
D inch2
Correct Answer: inch
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
Correct Answer: Density
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
Correct Answer: 0.6
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.
Correct Answer: Suitable for sticky materials
Gold ore concentration is mostly done using___________________?
A Jigging
B Tabling
C Froth floatation
D Elutriation
Correct Answer: Tabling
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
Correct Answer: Fluid energy mill
Pine oil and Cresylic acid are used as ______________ in the froth floatation process?
A Frother
B Collector
C Depressor
D Conditioner
Correct Answer: Frother
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