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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.

Desulphurisation of petrol is done in a _____________________?

A Bollman extractor

B Rotating disc extractor

C Packed extraction column

D Plate type extraction column

Review Detailed Answer

Correct Answer: Rotating disc extractor

Pressure drop through plate tower as compared to that through packed tower, for the same duty will be___________________?

A Less

B More

C Equal

D Either A. or B.; depends on the packing height

Review Detailed Answer

Correct Answer: More

For gas absorption, low viscosity solvents are preferred, because of their ____________________?

A Better flow characteristics

B Low pumping pressure drop

C Rapid absorption rates

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

Which of the following increases during evaporative cooling process with recirculated water supply ?

A Wet bulb temperature

B Relative humidity

C Partial pressure of vapour

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

Drying of a solid involves _________________ transfer ?

A Only heat

B Only mass

C Both heat and mass

D None of these

Review Detailed Answer

Correct Answer: Both heat and mass

In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of _______________ is zero?

A Interface

B Gas phase

C Liquid phase

D All A , B. & C.

Review Detailed Answer

Correct Answer: Interface

Which of the following is used for the concentration of rubber latex ?

A Agitated film evaporator

B Long tube vertical evaporator

C Short tube evaporator

D Calandria

Review Detailed Answer

Correct Answer: Agitated film evaporator

Operating velocity in a packed tower is usually __________________ the flooding velocity ?

A Half

B Twice

C Equal to

D More than

Review Detailed Answer

Correct Answer: Half

For stripping of a gas in a counter current stripper, the operating line _____________________?

A Lies above the equilibrium curve

B Lies below the equilibrium curve

C Can lie above or below the equilibrium curve

D Is always parallel to the equilibrium curve

Review Detailed Answer

Correct Answer: Can lie above or below the equilibrium curve

In gas-liquid contact operation, the number of ideal stages, N = (xa – xb)/(xb – x*b). This is true when the stripping factor ‘S’ is ________________?

A S > 1

B S < 1

C S = 1

D S = ∞

Review Detailed Answer

Correct Answer: S > 1

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Desulphurisation of petrol is done in a _____________________?

Pressure drop through plate tower as compared to that through packed tower, for the same duty will be___________________?

For gas absorption, low viscosity solvents are preferred, because of their ____________________?

Which of the following increases during evaporative cooling process with recirculated water supply ?

Drying of a solid involves _________________ transfer ?

In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of _______________ is zero?

Which of the following is used for the concentration of rubber latex ?

Operating velocity in a packed tower is usually __________________ the flooding velocity ?

For stripping of a gas in a counter current stripper, the operating line _____________________?

In gas-liquid contact operation, the number of ideal stages, N = (xa – xb)/(xb – x*b). This is true when the stripping factor ‘S’ is ________________?