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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.

Ball mill is used for__________________?

A Crushing

B Coarse grinding

C Fine grinding

D Attrition

Review Detailed Answer

Correct Answer: Fine grinding

During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration___________________?

A At time zero

B At the end of filtration

C When half the filtrate has been obtained

D At the end of filtration, but decreases with time subsequently

Review Detailed Answer

Correct Answer: At the end of filtration

Paddle agitator_________________?

A Is suitable for mixing low viscosity liquids

B Produces axial flow

C Moves at very high speed

D None of these

Review Detailed Answer

Correct Answer: Is suitable for mixing low viscosity liquids

Rittinger’s crushing law states that_____________________?

A Work required to form a particle of any size is proportional to the square of the surface to

B Work required to form a particle of a particular size is proportional to the square root of the

C Work required in crushing is proportional to the new surface created

D For a given machine and feed, crushing efficiency is dependent on the size of the feed &

Review Detailed Answer

Correct Answer: Work required in crushing is proportional to the new surface created

The opening of a 200 mesh screen (Taylor series) is__________________?

A 0.0074 cm

B 0.0074 mm

C 0.0047 cm

D 74 milli-microns

Review Detailed Answer

Correct Answer: 0.0074 cm

In case of a revolving mill, wet grinding compared to dry grinding__________________?

A Requires more energy

B Has less capacity

C Complicates handling & classification of the product

D None of these

Review Detailed Answer

Correct Answer: None of these

Which of the following is a continuous filter ?

A Plate and frame filter

B Cartridge filter

C Shell and leaf filter

D None of these

Review Detailed Answer

Correct Answer: None of these

The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to___________________?

A N°

B N1

C N2

D N3

Review Detailed Answer

Correct Answer: N2

In a grinding operation, the limiting particle size is the size of the _______________ particle in the sample?

A Smallest

B Largest

C Either A. or B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Neither A. nor B.

Feed size of ≥ 25 cms can be accepted by _______________________?

A Ball mill

B Rod mill

C Fluid energy mill

D Jaw crusher

Review Detailed Answer

Correct Answer: Jaw crusher

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

Ball mill is used for__________________?

During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration___________________?

Paddle agitator_________________?

Rittinger’s crushing law states that_____________________?

The opening of a 200 mesh screen (Taylor series) is__________________?

In case of a revolving mill, wet grinding compared to dry grinding__________________?

Which of the following is a continuous filter ?

The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to___________________?

In a grinding operation, the limiting particle size is the size of the _______________ particle in the sample?

Feed size of ≥ 25 cms can be accepted by _______________________?