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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.

Number of gm moles of solute dissolved in one liter of a solution is called its____________________?

A Equivalent weight

B Molarity

C Molality

D Normality

Review Detailed Answer

Correct Answer: Molarity

A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is__________________?

A 0.16

B 0.33

C 0.66

D 0.47

Review Detailed Answer

Correct Answer: 0.33

Vapor pressure of a solution is proportional to (where, Sv and St are mole fraction of solvent and solute respectively) ?

A Sv

B 1/St

C St

D 1/Sv

Review Detailed Answer

Correct Answer: Sv

The value of gas constant ‘R’ is ______________ kcal/kg.mole.°C?

A 2.79

B 1.987

C 3.99

D None of these

Review Detailed Answer

Correct Answer: None of these

In a binary liquid system, the composition expressed as _______________ is independent of the temperature & pressure?

A Kg of solute/kg of solvent

B Kg-mole of solute/kg-mole of solvent

C Kg-mole of solute/1000 kg of solvent

D All A., B. & C.

Review Detailed Answer

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

Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling ?

A Square pitch

B Triangular pitch

C Diagonal square pitch

D None of these

Review Detailed Answer

Correct Answer: Triangular pitch

“The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium”. This is ______________ law?

A Kirchoff’s

B Planck’s

C Wien’s displacement

D Stefan-Boltzmann

Review Detailed Answer

Correct Answer: Kirchoff’s

In a forward feed multiple effect evaporator, the pressure is ____________________?

A Highest in last effect

B Lowest in last effect

C Same in all effects

D Dependent on the number of effects

Review Detailed Answer

Correct Answer: Lowest in last effect

For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is______________?

A Nu = 0.023 Re0.8. Pr0.4

B Nu = (π/2) Gz

C Nu = (2/π) Gz

D Nu = 2Gz0.5

Review Detailed Answer

Correct Answer: Nu = (2/π) Gz

The non-dimensional temperature gradient in a liquid at the wall of a pipe is the ____________________?

A Heat flux

B Nusselt number

C Prandtl number

D Schmidt number

Review Detailed Answer

Correct Answer: Heat flux

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Number of gm moles of solute dissolved in one liter of a solution is called its____________________?

A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is__________________?

Vapor pressure of a solution is proportional to (where, Sv and St are mole fraction of solvent and solute respectively) ?

The value of gas constant ‘R’ is ______________ kcal/kg.mole.°C?

In a binary liquid system, the composition expressed as _______________ is independent of the temperature & pressure?

Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling ?

“The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium”. This is ______________ law?

In a forward feed multiple effect evaporator, the pressure is ____________________?

For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is______________?

The non-dimensional temperature gradient in a liquid at the wall of a pipe is the ____________________?