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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.

For a tubular reactor with space time ‘η’ and residence time ‘ζ’, the following statement holds good ?

A η and θ are always equal

B η = θ, when the fluid density changes in the reactor

C η = θ, for an isothermic tubular reactor in which the density of the process fluid is constant

D η = θ, for a non-isothermal reactor

Review Detailed Answer

Correct Answer: η = θ, for an isothermic tubular reactor in which the density of the process fluid is constant

Kinetics of a solid catalysed reaction can best be studied in a _________________ reactor?

A Batch

B Plug-flow

C Mixed

D None of these

Review Detailed Answer

Correct Answer: Mixed

If ‘n’ is the order of reaction, then unit of rate constant is _________________?

A 1/(time)(concentration)n – 1

B (Time)-1 (concentration)n – 1

C (Time)n – 1 (concentration)

D None of these

Review Detailed Answer

Correct Answer: 1/(time)(concentration)n – 1

A rise in temperature ______________________?

A Normally tends to increase the reaction rate

B Does not affect a catalysed reaction

C Does not affect photo-chemical reaction rates

D All A., B. and C.

Review Detailed Answer

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

BET apparatus is used to determine the ___________________?

A Specific surface of a porous catalyst

B Pore size distribution

C Pore diameter

D Porosity of the catalyst bed

Review Detailed Answer

Correct Answer: Specific surface of a porous catalyst

Effectiveness factor of a catalyst pellet is a measure of the _________________ resistance?

A Pore diffusion

B Gas film

C Chemical reaction

D None of these

Review Detailed Answer

Correct Answer: Pore diffusion

In the fluid catalytic cracker (FCC), the cracking reaction is _____ (i) and the regeneration is _ (ii) _________?

A (i) exothermic (ii) endothermic

B (i) exothermic (ii) exothermic

C (i) endothermic (ii) endothermic

D (i) endothermic (ii) exothermic

Review Detailed Answer

Correct Answer: (i) endothermic (ii) exothermic

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

A 0.33

B 0.5

C 1

D Data insufficient, can’t be predicted

Review Detailed Answer

Correct Answer: 1

In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased ?

A H2 + Cl2 ⇌ 2HCl

B N2 + O2 ⇌ 2NO

C N2O4 ⇌ 2 NO2

D H2 + I2 ⇌ 2HI

Review Detailed Answer

Correct Answer: N2 + O2 ⇌ 2NO

A plug-flow reactor is characterized by _____________________?

A High capacity

B Presence of axial mixing

C Presence of lateral mixing

D Constant composition and temperature of reaction mixture

Review Detailed Answer

Correct Answer: Presence of lateral mixing

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For a tubular reactor with space time ‘η’ and residence time ‘ζ’, the following statement holds good ?

Kinetics of a solid catalysed reaction can best be studied in a _________________ reactor?

If ‘n’ is the order of reaction, then unit of rate constant is _________________?

A rise in temperature ______________________?

BET apparatus is used to determine the ___________________?

Effectiveness factor of a catalyst pellet is a measure of the _________________ resistance?

In the fluid catalytic cracker (FCC), the cracking reaction is _____ (i) and the regeneration is _ (ii) _________?

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased ?

A plug-flow reactor is characterized by _____________________?

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For a tubular reactor with space time ‘η’ and residence time ‘ζ’, the following statement holds good ?

Kinetics of a solid catalysed reaction can best be studied in a _________________ reactor?

If ‘n’ is the order of reaction, then unit of rate constant is _________________?

A rise in temperature ______________________?

BET apparatus is used to determine the ___________________?

Effectiveness factor of a catalyst pellet is a measure of the _________________ resistance?

In the fluid catalytic cracker (FCC), the cracking reaction is _____________ (i) and the regeneration is _______________ (ii) _______________?

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased ?

A plug-flow reactor is characterized by _____________________?

In the fluid catalytic cracker (FCC), the cracking reaction is _____ (i) and the regeneration is _ (ii) _________?