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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

Use of baffles in agitators help in minimising the ______________ tendency?

A Swirling

B Vortexing

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed ?

A Wet grinding in low viscous suspension

B Wet grinding in high viscous suspension

C Dry grinding of large particles (upto 1.25 cms)

D Dry grinding of large particles in un-baffed mills

Review Detailed Answer

Correct Answer: Dry grinding of large particles in un-baffed mills

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

Correct Answer: Increases continuously

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Use of baffles in agitators help in minimising the ______________ tendency?

Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed ?

A tube mill compared to a ball mill__________________?

Grizzlies are used for separating _____________ solids?

In closed circuit grinding as compared to open circuit grinding, the_________________?

In bag filters, filter fabrics are never made of__________________?

For crushing of solids, the Rittinger’s law states that the work required for crushing is proportional to __________________?

Which of the following screens has the maximum capacity ?

For spheres, volume shape factor is given by____________________?

The inlet pressure in a constant rate filtration____________________?