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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.

Raoult’s law does not apply, when the___________________?

A Size of component molecules are not equal

B Attractive forces between like and unlike molecules in the solution are approximately equal

C Component molecules are non-polar

D Chemical combination or molecular association between unlike molecules takes place in the

Review Detailed Answer

Correct Answer: Component molecules are non-polar

In most of the mechanically agitated liquid-liquid extractors, baffles or horizontal compartmental plates are provided, which helps in_________________?

A Reducing the axial mixing

B Increasing the rate of extraction

C Maintaining the concentration difference between the two phases

D All A , B & C.

Review Detailed Answer

Correct Answer: All A , B & C.

Rayleigh’s equation applies to ________________ distillation?

A Continuous

B Steam

C Differential

D Flash

Review Detailed Answer

Correct Answer: Differential

Blowdown in a cooling tower__________________?

A Means discarding a small fraction of circulating water to prevent and limit the concentration

B Increases the scale forming tendencies of water

C Is undesirable

D All A., B. & C.

Review Detailed Answer

Correct Answer: Means discarding a small fraction of circulating water to prevent and limit the concentration

Water entrained by circulating air in cooling towers is termed as________________?

A Drift

B Blow down

C Vapor load

D None of these

Review Detailed Answer

Correct Answer: Drift

Alcohol is dehydrated using ______________ distillation?

A Extractive

B Azeotropic

C Steam

D Molecular

Review Detailed Answer

Correct Answer: Azeotropic

When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is _______________ distillation?

A Continuous

B Steam

C Azeotropic

D None of these

Review Detailed Answer

Correct Answer: Steam

Mechanism of moisture removal in case of freeze drying of food stuff is by ___________________?

A Evaporation

B Sublimation

C Dehydration

D Adsorption

Review Detailed Answer

Correct Answer: Sublimation

Molality is defined as the number of gm moles of solute per _________________ of solvent ?

A Litre

B gm

C Kg

D m3

Review Detailed Answer

Correct Answer: Kg

Flash distillation is _______________________?

A Same as differential distillation

B Used for multi-component systems like crude refining

C Same as simple distillation

D Most useful for handling binary systems

Review Detailed Answer

Correct Answer: Used for multi-component systems like crude refining

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Raoult’s law does not apply, when the___________________?

In most of the mechanically agitated liquid-liquid extractors, baffles or horizontal compartmental plates are provided, which helps in_________________?

Rayleigh’s equation applies to ________________ distillation?

Blowdown in a cooling tower__________________?

Water entrained by circulating air in cooling towers is termed as________________?

Alcohol is dehydrated using ______________ distillation?

When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is _______________ distillation?

Mechanism of moisture removal in case of freeze drying of food stuff is by ___________________?

Molality is defined as the number of gm moles of solute per _________________ of solvent ?

Flash distillation is _______________________?