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.

_______________ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower?

A Sherwood

B Stanton

C Lewis

D Peclet

Review Detailed Answer

Correct Answer: Lewis

Gaseous diffusivity at atmospheric pressure is of the order of _____________________ cm2/second?

A 1

B 1 to 5

C 5 to 10

D > 10

Review Detailed Answer

Correct Answer: 1

Drift in a cooling tower is ___________________?

A The water entrained by the circulating air

B Dependent on the water lost by evaporation

C Desirable

D All A., B. & C.

Review Detailed Answer

Correct Answer: The water entrained by the circulating air

HETP is numerically equal to HTU, only when the operating line ______________________?

A Lies below the equilibrium line

B Lies above the equilibrium line

C And equilibrium lines are parallel

D Is far from the equilibrium line

Review Detailed Answer

Correct Answer: And equilibrium lines are parallel

At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbent __________________?

A Increases

B Decreases

C Remains unchanged

D Increases exponentially

Review Detailed Answer

Correct Answer: Decreases

Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture ?

A Anthracite coal

B Rag paper

C Bamboo

D Inorganic solids

Review Detailed Answer

Correct Answer: Bamboo

Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and _________________?

A Humidified with wet bulb temperature decreasing

B Humidified at constant wet bulb temperature

C Dehumidified

D None of these

Review Detailed Answer

Correct Answer: Humidified with wet bulb temperature decreasing

Components, having widely different boiling point in a binary mixture, can be separated using ________________ distillation?

A Molecular

B Extractive

C Steam

D Simple

Review Detailed Answer

Correct Answer: Simple

Humid volume is the total volume in m3 of 1 kg of _____________________?

A Vapour laden gas at 1 atm. and room temperature

B Gas plus its accompanying vapour at 1 atm. and room temperature

C Gas plus its accompanying vapour at 1 atm. and gas temperature

D Vapour laden gas at 1 atm. and gas temperature

Review Detailed Answer

Correct Answer: Gas plus its accompanying vapour at 1 atm. and gas temperature

Which of the following is a suitable absorbent for removal of H2S from natural gas ?

A Vetrocoke solution

B Monoethanolamine (MEA)

C Dilute

D Hot water

Review Detailed Answer

Correct Answer: Monoethanolamine (MEA)

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

_______________ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower?

Gaseous diffusivity at atmospheric pressure is of the order of _____________________ cm2/second?

Drift in a cooling tower is ___________________?

HETP is numerically equal to HTU, only when the operating line ______________________?

At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbent __________________?

Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture ?

Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and _________________?

Components, having widely different boiling point in a binary mixture, can be separated using ________________ distillation?

Humid volume is the total volume in m3 of 1 kg of _____________________?

Which of the following is a suitable absorbent for removal of H2S from natural gas ?