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.

For _______________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same?

A Unsaturated surface

B Constant rate

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

Rate of leaching increases with increasing______________________?

A Temperature

B Viscosity of solvent

C Pressure

D Size of the solid

Review Detailed Answer

Correct Answer: Temperature

The term “cooling range” in a cooling tower refers to the difference in the temperature of____________________?

A Cold water leaving the tower and the wet bulb temperature of the surrounding air

B Hot water entering the tower and the wet bulb temperature of the surrounding air

C Hot water entering the tower and the cooled water leaving the tower

D None of these

Review Detailed Answer

Correct Answer: Hot water entering the tower and the cooled water leaving the tower

When the liquid over a plate is of uniform concentration, then ______________________?

A Murphree efficiency > point efficiency

B Murphree efficiency < point efficiency

C Murphree efficiency = point efficiency

D Murphree efficiency ≠ point efficiency

Review Detailed Answer

Correct Answer: Murphree efficiency = point efficiency

The dimension of diffusivity is same as that of the__________________?

A Density

B Molal concentration

C Kinematic viscosity

D Velocity head

Review Detailed Answer

Correct Answer: Kinematic viscosity

Diffusion in concentrated solutions differs from that in dilute solutions, because of the change in the _______________ with the concentration of the solution?

A Degree of ideality

B Viscosity

C Both A & B

D Neither A nor B

Review Detailed Answer

Correct Answer: Both A & B

At minimum reflux ratio for a given separation__________________?

A Number of plates is zero

B Number of plates is infinity

C Minimum number of the theoretical plates is required

D Separation is most efficient

Review Detailed Answer

Correct Answer: Number of plates is infinity

In the desorption of highly soluble gas from the liquid, the main resistance will be in the ______________ phase?

A Gas

B Liquid

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Liquid

Which of the following is the most suitable for extraction in a system having very low density difference ?

A Mixer-settler extractor

B Centrifugal extractor

C Pulsed extractor

D Packed extraction tower

Review Detailed Answer

Correct Answer: Centrifugal extractor

What is the reflux ratio at total reflux ?

A Zero

B Infinity

C Unity

D Data insufficient

Review Detailed Answer

Correct Answer: Infinity

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For _______________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same?

Rate of leaching increases with increasing______________________?

The term “cooling range” in a cooling tower refers to the difference in the temperature of____________________?

When the liquid over a plate is of uniform concentration, then ______________________?

The dimension of diffusivity is same as that of the__________________?

Diffusion in concentrated solutions differs from that in dilute solutions, because of the change in the _______________ with the concentration of the solution?

At minimum reflux ratio for a given separation__________________?

In the desorption of highly soluble gas from the liquid, the main resistance will be in the ______________ phase?

Which of the following is the most suitable for extraction in a system having very low density difference ?

What is the reflux ratio at total reflux ?