M C Q s D r i v e

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.

Kick’s law assumes that the energy required for size reduction is proportional to the logarithm of the ratio between the initial and the final diameters. The unit of Kick’s constant is_________________?
A kW. sec/kg
B kWh/kg
C kWh/sec. kg
D kg/sec
Correct Answer: kW. sec/kg
To get ultrafine particles, the equipment used is a _________________?
A Ball mill
B Rod mill
C Hammer crusher
D Fluid energy mill
Correct Answer: Fluid energy mill
Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about________________?
A 1 to 2°
B 2 to 5°
C 5 to 10°
D 10 to 15°
Correct Answer: 2 to 5°
Tube mill compared to ball mill_______________________?
A Produces finer products
B Is long in comparison with its diameter
C Uses smaller balls
D All A., B. & C.
Correct Answer: All A., B. & C.
In case of a hammer crusher, the final product size depends on the____________________?
A Feed rate
B Rotor speed
C Clearance between hammer & grinding plates
D All A., B. and C.
Correct Answer: All A., B. and C.
Size reduction of asbestos and mica is done by____________________?
A Hammer mills
B Rod mills
C Gyratory crushers
D Crushing rolls
Correct Answer: Hammer mills
The energy consumed by a ball mill depends on__________________?
A Its speed
B Its ball load
C The density of the material being ground
D All A., B. and C.
Correct Answer: All A., B. and C.
The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is_______________?
A 2
B √2
C 1.5
D √3
Correct Answer: 2
If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the __________________?
A Sedimentation
B Flocculation
C Dispersion
D Centrifugation
Correct Answer: Centrifugation
Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called__________________?
A Classification
B Sedimentation
C Clarification
D Decantation
Correct Answer: Sedimentation