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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.

In case of an ideal solution, the total vapor pressure varies ______________ with the composition expressed as mole fraction?

A Inversely

B Linearly

C Exponentially

D None of these

Review Detailed Answer

Correct Answer: Linearly

Flooding in a distillation column is detected by a sharp ___________________?

A Increase in Murphree plate efficiency

B Decrease in pressure drop

C Decrease in liquid hold up in the column

D Increase in pressure drop

Review Detailed Answer

Correct Answer: Increase in pressure drop

Which of the following operations does not involve leaching ?

A Dissolving gold from ores

B Dissolving pharmaceutical products from bark or roots

C Dissolving sugar from the cells of the beet

D Removing nicotine from its water solution by kerosene

Review Detailed Answer

Correct Answer: Removing nicotine from its water solution by kerosene

Diameter to height ratio for a raschig ring is_____________________?

A 1

B 0.5

C 2

D 8

Review Detailed Answer

Correct Answer: 1

With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency____________________?

A Increases

B Decreases

C Remain same

D May increase or decrease; depends on individual design

Review Detailed Answer

Correct Answer: Increases

For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is___________________?

A Calculated

B Unknown

C Known

D Not required

Review Detailed Answer

Correct Answer: Known

Batch tray dryers suffers from the disadvantage of______________________?

A High maintenance cost

B Non-uniform & low production rate

C High labour cost & low heat economy

D All ‘a’, ‘b’ & ‘c’

Review Detailed Answer

Correct Answer: High labour cost & low heat economy

Smoke is an example of ___________________?

A Solid dispersed in liquid

B Solid dispersed in gas

C Liquid dispersed in gas

D Gas dispersed in liquid

Review Detailed Answer

Correct Answer: Solid dispersed in gas

Rotary dryers cannot handle _______________ materials ?

A Free flowing

B Dry

C Sticky

D Granular

Review Detailed Answer

Correct Answer: Sticky

Prandtl number for water at 20°C is about ________________?

A 7

B 70

C 0.7

D 150

Review Detailed Answer

Correct Answer: 7

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In case of an ideal solution, the total vapor pressure varies ______________ with the composition expressed as mole fraction?

Flooding in a distillation column is detected by a sharp ___________________?

Which of the following operations does not involve leaching ?

Diameter to height ratio for a raschig ring is_____________________?

With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency____________________?

For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is___________________?

Batch tray dryers suffers from the disadvantage of______________________?

Smoke is an example of ___________________?

Rotary dryers cannot handle _______________ materials ?

Prandtl number for water at 20°C is about ________________?