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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 diffusivity D. in a binary gas mixture is related to the temperature (T) as________________________?

A D ∝ T

B D ∝ T0.5

C D ∝ T1.5

D D ∝ T2

Review Detailed Answer

Correct Answer: D ∝ T

The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or “outgassed” adsorbent to from a definite concentration of adsorbate is called its_____________________?

A Integral heat of adsorption

B Heat of wetting

C Differential heat of adsorption

D Heat of normal condensation

Review Detailed Answer

Correct Answer: Integral heat of adsorption

An Azeotropic mixture is a ________________ mixture?

A Binary

B Ternary

C Constant boiling point

D None of these

Review Detailed Answer

Correct Answer: Constant boiling point

Inside the distillation columns, the ________________________?

A Highest temperatures is near the feed plate

B Driving force for the liquid flow is its weight

C Vapors are not always at their dew points

D All A., B. and C.

Review Detailed Answer

Correct Answer: Driving force for the liquid flow is its weight

Total reflux in a distillation operation requires minimum____________________?

A Reboiler load

B Number of plates

C Condenser load

D All A., B. and C.

Review Detailed Answer

Correct Answer: Number of plates

Boiling point diagram is not affected by the ambient______________________?

A Pressure

B Humidity

C Temperature

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

Dry bulb temperature of unsaturated air is more than its ________________ temperature?

A Dew point

B Wet bulb

C Both A & B

D Neither A nor B

Review Detailed Answer

Correct Answer: Both A & B

Inside the distillation column, the________________________?

A Driving force for the vapour flow is the pressure drop

B Liquids are not always at their bubble points

C Pressure increases gradually from bottom to the top of the column

D None of these

Review Detailed Answer

Correct Answer: Driving force for the vapour flow is the pressure drop

A mixture of 10% C6H6 vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around _______________ °C?

A 21.7

B 20

C 27.3

D 18.7

Review Detailed Answer

Correct Answer: 18.7

Chemisorption (chemical adsorption) is_______________________?

A Same as “Van der Waals” adsorption

B Characterised by adsorption of heat

C An irreversible phenomenon

D A reversible phenomenon

Review Detailed Answer

Correct Answer: An irreversible phenomenon

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The diffusivity D. in a binary gas mixture is related to the temperature (T) as________________________?

The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or “outgassed” adsorbent to from a definite concentration of adsorbate is called its_____________________?

An Azeotropic mixture is a ________________ mixture?

Inside the distillation columns, the ________________________?

Total reflux in a distillation operation requires minimum____________________?

Boiling point diagram is not affected by the ambient______________________?

Dry bulb temperature of unsaturated air is more than its ________________ temperature?

Inside the distillation column, the________________________?

A mixture of 10% C6H6 vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around _______________ °C?

Chemisorption (chemical adsorption) is_______________________?