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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.

The film co-efficient between condensing vapour and metal wall increases with _____________________?

A Increasing temperature of the vapour

B Decreasing temperature of the vapour

C Increasing viscosity of the film of condensate

D Increasing temperature drop

Review Detailed Answer

Correct Answer: Increasing temperature of the vapour

With increase in temperature, the thermal conductivity of most liquids_________________?

A Increases

B Decreases

C Remain same

D First increases upto a certain temperature and then becomes constant

Review Detailed Answer

Correct Answer: Decreases

In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass _____________ through the heat exchanger ?

A Once

B Twice

C Thrice

D Four times

Review Detailed Answer

Correct Answer: Twice

The driving potential for the crystal growth during crystallisation is the _______________ of the solution?

A Concentration

B Viscosity

C Super-saturation

D Density

Review Detailed Answer

Correct Answer: Super-saturation

Heat flux, as defined in heat flow is analogous to _______________ in electricity flow?

A Current

B Voltage

C Resistance

D None of these

Review Detailed Answer

Correct Answer: Current

Conductance is given by (where, x = thickness, A = heat flow area, K = thermal conductivity.)?

A x/KA

B KA/x

C K/Ax

D A/Kx

Review Detailed Answer

Correct Answer: KA/x

LMTD can’t be used as such without a correction factor for the_________________?

A Multipass heat exchanger

B Baffled heat exchanger

C Condensation of mixed vapour in a condenser

D All A. B. and C.

Review Detailed Answer

Correct Answer: All A. B. and C.

Heat sensitive materials can be concentrated in an evaporator employing_______________?

A Vacuum

B High pressure

C High residence time

D None of these

Review Detailed Answer

Correct Answer: Vacuum

For what value of Prandtl number, St = f/2 ?

A 1.5

B 1

C > 1

D < 1

Review Detailed Answer

Correct Answer: 1

In a heat exchanger, the rate of heat transfer from the hot fluid to the cold fluid___________________?

A Varies directly as the area and the LMTD

B Directly proportional to LMTD and inversely proportional to the area

C Varies as square of the area

D None of these

Review Detailed Answer

Correct Answer: Varies directly as the area and the LMTD

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The film co-efficient between condensing vapour and metal wall increases with _____________________?

With increase in temperature, the thermal conductivity of most liquids_________________?

In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass _____________ through the heat exchanger ?

The driving potential for the crystal growth during crystallisation is the _______________ of the solution?

Heat flux, as defined in heat flow is analogous to _______________ in electricity flow?

Conductance is given by (where, x = thickness, A = heat flow area, K = thermal conductivity.)?

LMTD can’t be used as such without a correction factor for the_________________?

Heat sensitive materials can be concentrated in an evaporator employing_______________?

For what value of Prandtl number, St = f/2 ?

In a heat exchanger, the rate of heat transfer from the hot fluid to the cold fluid___________________?