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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.

Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm) ?

A Trough washer

B Baum jig washer

C Spiral separator

D Froth floatation

Review Detailed Answer

Correct Answer: Froth floatation

Velocity of a small particle of diameter ‘Dp’ at a distance ‘r’ from the rotational axis of a cyclone rotating at an angular speed ‘ω’ is given by (the other symbols are as per standard notation) ?

A [(DP/18). (ρs – ρ/μ)] ω2r

B [(DP2/18). (ρs – ρ/μ)] ω2r

C [(DP/18). (ρs – ρ/μ)] ω2r2

D [(DP2/18). (ρs – ρ/μ)] ω2r

Review Detailed Answer

Correct Answer: [(DP2/18). (ρs – ρ/μ)] ω2r

For a non-spherical particle, the sphericity__________________?

A Is defined as the ratio of surface area of a sphere having the same volume as the particle to the

B Has the dimension of length

C Is always less than 1

D Is the ratio of volume of a sphere having the same surface area as the particle to the actual

Review Detailed Answer

Correct Answer: Is defined as the ratio of surface area of a sphere having the same volume as the particle to the

Two particles are called to be equal settling, if they are having the same ?

A Size

B Specific gravity

C Terminal velocities in the same fluid & in the same field of force

D None of these

Review Detailed Answer

Correct Answer: Terminal velocities in the same fluid & in the same field of force

Which of the following comes in the category of primary crusher for hard and tough stone ?

A Jaw crusher

B Cone crusher

C Gyratory crusher

D None of these

Review Detailed Answer

Correct Answer: Jaw crusher

Mesh indicates the number of holes per_________________?

A Square inch

B Linear inch

C Square foot

D Linear foot

Review Detailed Answer

Correct Answer: Linear inch

Which of the following conveyors cannot be recommended for transportation of abrasive materials ?

A Belt conveyor

B Apron conveyor

C Flight conveyor

D Chain conveyor

Review Detailed Answer

Correct Answer: Flight conveyor

For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the ______________ filter?

A Plate & frame

B Shell & leaf

C Sand

D Rotary vacuum

Review Detailed Answer

Correct Answer: Sand

Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m3) ?

A 3.6 W.D.V.ρ

B 3.6 W.D.V

C 3.6 W.V.ρ

D 3.6 D.V.ρ

Review Detailed Answer

Correct Answer: 3.6 W.D.V.ρ

Addition of filter aid to the slurry before filtration is done to _______________ of the cake?

A Increase the porosity

B Increase the compressibility co-efficient

C Decrease the porosity

D Decrease the compressibility co-efficient

Review Detailed Answer

Correct Answer: Increase the porosity

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm) ?

Velocity of a small particle of diameter ‘Dp’ at a distance ‘r’ from the rotational axis of a cyclone rotating at an angular speed ‘ω’ is given by (the other symbols are as per standard notation) ?

For a non-spherical particle, the sphericity__________________?

Two particles are called to be equal settling, if they are having the same ?

Which of the following comes in the category of primary crusher for hard and tough stone ?

Mesh indicates the number of holes per_________________?

Which of the following conveyors cannot be recommended for transportation of abrasive materials ?

For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the ______________ filter?

Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m3) ?

Addition of filter aid to the slurry before filtration is done to _______________ of the cake?