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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.

______________ are used for the separation of coarse particles from a slurry of fine particles?

A Thickeners

B Classifiers

C Hydrocyclones

D Decanters

Review Detailed Answer

Correct Answer: Classifiers

Use of grinding aids results in the ___________________?

A Enhanced production rate

B Finer products

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Neither A. nor B.

In a ball mill, the volume occupied by the balls (when the mill is stopped) is about _______________ percent of the volume of the mill?

A 35

B 50

C 70

D 85

Review Detailed Answer

Correct Answer: 50

Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?

A Density separation

B Differential wettability

C Size

D Volatile matter content

Review Detailed Answer

Correct Answer: Density separation

Critical speed of rotation, N (in rps – rotation per second) of a trammel is equal to (where, g = acceleration due to gravity = 9.81 m/sec2 and, r = radius of trammel, metre.) ?

A (1/2π). √(g/r)

B (1/π). √(g/r)

C ½ √(g/r)

D 2π. √(g/r)

Review Detailed Answer

Correct Answer: (1/2π). √(g/r)

General crushing equation is given by d(P/m) = -K (dD̅ S/D̅ n S). Bond’s crushing law is obtained by solving this equation for n = _____________ and feed of infinite size?

A 1

B 1.5

C 2

D 2.5

Review Detailed Answer

Correct Answer: 1

Removal of activated carbon from glycerine is done by _________________?

A Plate and frame filter

B Rotary vacuum filter

C Batch basket centrifuge

D None of these

Review Detailed Answer

Correct Answer: Plate and frame filter

The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an______________?

A Bag filter

B Electrostatic precipitator

C Cyclone separator

D Wet scrubber

Review Detailed Answer

Correct Answer: Electrostatic precipitator

Chance process is used for the________________?

A Cleaning of coal

B Concentration of iron ore

C Concentration of pyrites

D Water treatment

Review Detailed Answer

Correct Answer: Cleaning of coal

Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the _____________ filtration?

A Constant rate

B Varying pressure

C Varying rate

D Constant pressure

Review Detailed Answer

Correct Answer: Constant rate

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

______________ are used for the separation of coarse particles from a slurry of fine particles?

Use of grinding aids results in the ___________________?

In a ball mill, the volume occupied by the balls (when the mill is stopped) is about _______________ percent of the volume of the mill?

Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?

Critical speed of rotation, N (in rps – rotation per second) of a trammel is equal to (where, g = acceleration due to gravity = 9.81 m/sec2 and, r = radius of trammel, metre.) ?

General crushing equation is given by d(P/m) = -K (dD̅ S/D̅ n S). Bond’s crushing law is obtained by solving this equation for n = _____________ and feed of infinite size?

Removal of activated carbon from glycerine is done by _________________?

The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an______________?

Chance process is used for the________________?

Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the _____________ filtration?