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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

A tube mill compared to a ball mill__________________?
A Has a higher length/diameter ratio
B Produces a coarser product
C Has a higher diameter/length ratio
D Uses much larger balls
Correct Answer: Has a higher length/diameter ratio
Grizzlies are used for separating _____________ solids?
A Coarse
B Fine
C Any size
D None of these
Correct Answer: Fine
In closed circuit grinding as compared to open circuit grinding, the_________________?
A Specific surface of product is more
B Product has lesser size uniformity
C Production rate at a given limiting size is lower
D Operation is economical
Correct Answer: Operation is economical
In bag filters, filter fabrics are never made of__________________?
A Metallic wire woven mesh
B Polyester fibres
C Cotton fibres
D Nylon fibres
Correct Answer: Metallic wire woven mesh
For crushing of solids, the Rittinger’s law states that the work required for crushing is proportional to __________________?
A The new surface created
B The size reduction ratio
C The change in volume due to crushing
D None of these
Correct Answer: The new surface created
Which of the following screens has the maximum capacity ?
A Grizzlies
B Trommels
C Shaking screen
D Vibrating screen
Correct Answer: Vibrating screen
For spheres, volume shape factor is given by____________________?
A π = (A/D2)
B 2π = (2A/D2)
C π/6 = (V/D3)
D AD/V
Correct Answer: π/6 = (V/D3)
The inlet pressure in a constant rate filtration____________________?
A Increases continuously
B Decreases gradually
C Remains constant
D None of these
Correct Answer: Increases continuously
Trommels separate a mixture of particles depending on their_____________________?
A Size
B Density
C Wettability
D Electrical & magnetic properties
Correct Answer: Size
Close circuit grinding by a ball mill with air sweeping employs a _______________________?
A Classifier
B Cyclone separator between mill & classifier
C Both A. & B.
D Neither A. nor B.
Correct Answer: Both A. & B.
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