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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.

Fresh orange juice contains 12% (by weight) solids and the rest water 90% of the fresh juice is sent to an evaporator to remove water and subsequently mixed with the remaining 10% of fresh juice. The resultant product contains 40% solids. The kg of water removed from 1 kg fresh juice is__________________?

A 0.4

B 0.5

C 0.6

D 0.7

Review Detailed Answer

Correct Answer: 0.7

Sensible heat absorbed by 1 lb of water when it is heated from 32 to 212°F may be around ______________ BTU?

A 180

B 970

C 3.97

D Data insufficient, can’t be predicted

Review Detailed Answer

Correct Answer: 180

Stefan’s block body radiation law can also be derived from ______________ law?

A Kirchoff’s

B Planck’s

C Fourier’s

D None of these

Review Detailed Answer

Correct Answer: Planck’s

What is the geometric mean of two heat transfer areas A1 and A2 ?

A √(A1 . A2)

B √(A1 + A2)

C ½ √(A1 . A2)

D 2 √(A1 . A2)

Review Detailed Answer

Correct Answer: √(A1 . A2)

The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?

A 2

B 1/2

C 4

D 1/4

Review Detailed Answer

Correct Answer: 4

Which has the lowest Prandtl number ?

A Liquid metal

B Aqueous solution

C Water

D Lube oil

Review Detailed Answer

Correct Answer: Liquid metal

In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is_________________?

A Linear

B Hyperbolic

C Parabolic

D None of these

Review Detailed Answer

Correct Answer: Parabolic

Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because___________________?

A Convection becomes important

B Conduction becomes important

C Radiation becomes important

D Sub-cooled boiling occurs

Review Detailed Answer

Correct Answer: Radiation becomes important

‘Duhring’s plot’ is of use in_________________?

A Extractive distillation

B Evaporation

C Leaching

D Absorption

Review Detailed Answer

Correct Answer: Evaporation

View factor is important in heat transfer by_____________________?

A Steady state conduction

B Natural convection

C Forced convection

D Radiation

Review Detailed Answer

Correct Answer: Radiation

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Sensible heat absorbed by 1 lb of water when it is heated from 32 to 212°F may be around ______________ BTU?

Stefan’s block body radiation law can also be derived from ______________ law?

What is the geometric mean of two heat transfer areas A1 and A2 ?

The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?

Which has the lowest Prandtl number ?

In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is_________________?

Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because___________________?

‘Duhring’s plot’ is of use in_________________?

View factor is important in heat transfer by_____________________?