MCQsDrive | MCQsDrive

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 adiabatic saturation curve for a vapour-gas mixture is__________________?

A Straight line

B Slightly concave upward

C Slightly concave downward

D None of these

Review Detailed Answer

Correct Answer: Slightly concave upward

Flights in a rotary dryer are provided to________________?

A Lift and shower the solids thus exposing it thoroughly to the drying action of the gas

B Reduce the residence time of solid

C Increase the residence time of the solid

D None of these

Review Detailed Answer

Correct Answer: Lift and shower the solids thus exposing it thoroughly to the drying action of the gas

Stefan’s law describes the mass transfer by________________?

A Diffusion

B Bulk flow

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Fenske equation for determining the minimum number of theoretical stages in distillation column holds good, when the_________________?

A Relative volatility is reasonably constant

B Mixture (to be separated) shows negative deviation from ideality

C Mixture (to be separated) shows positive deviation from ideality

D Multi-component distillation is involved

Review Detailed Answer

Correct Answer: Relative volatility is reasonably constant

Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) ?

A Increases pressure drop, increases surface area

B Increases pressure drop, decreases surface area

C Decreases pressure drop, increases surface area

D Decreases pressure drop, decreases surface area

Review Detailed Answer

Correct Answer: Decreases pressure drop, increases surface area

When the psychometric ratio is ______________ then the adiabatic saturation temperature and wet bulb temperature becomes equal?

A 1

B 1

D ∞

Review Detailed Answer

Correct Answer: 1

The overall mass transfer co-efficient for the absorption of SO2 in air with dilute NaOH solution can be increased substantially by___________________?

A Increasing the gas film co-efficient

B Increasing the liquid film co-efficient

C Increasing the total pressure

D Decreasing the total pressure

Review Detailed Answer

Correct Answer: Increasing the gas film co-efficient

Liquid diffusivity is of the order of _______________ cm2 /second?

A 0.01

B 0.1

C 10-5 to 10-6

D > 1

Review Detailed Answer

Correct Answer: 10-5 to 10-6

Molecular diffusion is caused by the________________?

A Transfer of molecules from low concentration to high concentration region

B Thermal energy of the molecules

C Activation energy of the molecules

D Potential energy of the molecules

Review Detailed Answer

Correct Answer: Thermal energy of the molecules

The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of________________?

A Newtonian liquids

B Non-Newtonian liquids

C Ideal gases

D Real gases

Review Detailed Answer

Correct Answer: Ideal gases

Showing 501 to 510 of 684 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The adiabatic saturation curve for a vapour-gas mixture is__________________?

Flights in a rotary dryer are provided to________________?

Stefan’s law describes the mass transfer by________________?

Fenske equation for determining the minimum number of theoretical stages in distillation column holds good, when the_________________?

Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) ?

When the psychometric ratio is ______________ then the adiabatic saturation temperature and wet bulb temperature becomes equal?

The overall mass transfer co-efficient for the absorption of SO2 in air with dilute NaOH solution can be increased substantially by___________________?

Liquid diffusivity is of the order of _______________ cm2 /second?

Molecular diffusion is caused by the________________?

The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of________________?