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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.

Coffee is prepared from coffee beans by leaching with____________________?

A Cold water

B Hot water

C Dilute hot caustic solution

D Naphtha

Review Detailed Answer

Correct Answer: Hot water

The equation, NA = (DAB . Pt /RTZ) (y1 – y2) is for _______________________?

A Steady state equimolar counter diffusion

B Fick’s first law of diffusion

C Steady state diffusion for stagnant case

D Liquid M.T.C. by penetration theory

Review Detailed Answer

Correct Answer: Steady state equimolar counter diffusion

Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time) ?

A (De.t)1/2

B (De/t)1/2

C (4De/πt)1/2

D (4De/t)

Review Detailed Answer

Correct Answer: (4De/πt)1/2

The relative volatility of a binary mixture at the Azeotropic composition is _______________________?

A 1

B > 1

C 0

D ∞

Review Detailed Answer

Correct Answer: 1

For absorbing a sparingly soluble gas in a liquid, the_____________________?

A Gas side co-efficient should be increased

B Liquid side coefficient should be increased

C Gas side co-efficient should be decreased

D Liquid side co-efficient should be decreased

Review Detailed Answer

Correct Answer: Liquid side coefficient should be increased

Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the _______________ moisture?

A Free

B Unbound

C Equilibrium

D Bound

Review Detailed Answer

Correct Answer: Equilibrium

For the flow of gases through a capillary, with increase in temperature, the permeability __________________ as per Knudsen law?

A Increases

B Decreases

C Remain same

D Either A. or B.; depends on the gas

Review Detailed Answer

Correct Answer: Increases

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop___________________?

A Decreases

B Remains unchanged

C Increases

D Decreases exponentially

Review Detailed Answer

Correct Answer: Increases

A natural draft cooling tower is filled with wooden grids, which covers about _________________ percent of the tower height?

A 10-15

B 30-40

C 70-80

D 90-100

Review Detailed Answer

Correct Answer: 10-15

The Knudsen diffusivity is proportional to (where, T = absolute temperature) ______________________?

A √T

B T2

C T

D T4

Review Detailed Answer

Correct Answer: √T

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Coffee is prepared from coffee beans by leaching with____________________?

The equation, NA = (DAB . Pt /RTZ) (y1 – y2) is for _______________________?

Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time) ?

The relative volatility of a binary mixture at the Azeotropic composition is _______________________?

For absorbing a sparingly soluble gas in a liquid, the_____________________?

Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the _______________ moisture?

For the flow of gases through a capillary, with increase in temperature, the permeability __________________ as per Knudsen law?

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop___________________?

A natural draft cooling tower is filled with wooden grids, which covers about _________________ percent of the tower height?

The Knudsen diffusivity is proportional to (where, T = absolute temperature) ______________________?