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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.

For efficient grinding, ball mills must be operated__________________?

A At a speed less than the critical speed

B At a speed more than the critical speed

C At a speed equal to the critical speed

D With minimum possible small balls

Review Detailed Answer

Correct Answer: At a speed less than the critical speed

Rittinger’s number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger’s number of a material indicates its________________?

A Easier grindability

B Poor grindability

C High power consumption in grinding

D None of these

Review Detailed Answer

Correct Answer: Easier grindability

Carbon black is pulverised in a_______________?

A Hammer crusher

B Ball mill

C Roll crusher

D Gyratory crusher

Review Detailed Answer

Correct Answer: Ball mill

Which of the following is a vacuum filter ?

A Filter press

B Rotary disc filter

C Batch basket centrifuge

D Tank filter (Nutsche filter)

Review Detailed Answer

Correct Answer: Rotary disc filter

A fluid energy mill is used for_________________?

A Cutting

B Grinding

C Ultra grinding

D Crushing

Review Detailed Answer

Correct Answer: Ultra grinding

Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid ?

A Sand bed filter

B Plate and frame filter press

C Vacuum filter

D Batch basket centrifuge

Review Detailed Answer

Correct Answer: Vacuum filter

The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake)__________________?

A ∝ ΔP

B ∝ 1/ ΔP

C ∝ √ΔP

D Independent of ΔP

Review Detailed Answer

Correct Answer: Independent of ΔP

Filtration capacity of a rotary drum vacuum filter depends upon the_______________?

A Cake thickness

B Characteristics of the feed slurry

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Bond crushing law_________________?

A Calls for relatively less energy for the smaller product particles, than does the Rittinger law

B Is less realistic in estimating the power requirements of commercial crushers

C States that the work required to form particle of any size from very large feed is proportional

D States that the work required for the crushing is proportional to the new surface created

Review Detailed Answer

Correct Answer: Calls for relatively less energy for the smaller product particles, than does the Rittinger law

Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?

A 6.V/D.S

B V/6D.S

C D.S/V

D V/D.S

Review Detailed Answer

Correct Answer: 6.V/D.S

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For efficient grinding, ball mills must be operated__________________?

Rittinger’s number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger’s number of a material indicates its________________?

Carbon black is pulverised in a_______________?

Which of the following is a vacuum filter ?

A fluid energy mill is used for_________________?

Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid ?

The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake)__________________?

Filtration capacity of a rotary drum vacuum filter depends upon the_______________?

Bond crushing law_________________?

Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?