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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.

Which of the following equipments is not used for gas dispersion ?

A Agitated vessels

B Bubble cap tray towers

C Perforated sieve tray towers

D Spray towers

Review Detailed Answer

Correct Answer: Spray towers

If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively ?

A [xD/(RD + 1)], [RD/(RD + 1)]

B [RD/(RD + 1)], [xD/(xD + 1)]

C [xD/(RD + 1)], [(RD + 1)/RD]

D None of these

Review Detailed Answer

Correct Answer: [RD/(RD + 1)], [xD/(xD + 1)]

Hydrogenation of oil is carried out in a/an _______________ in Vanaspati manufacturing plant?

A Agitated vessel

B Sieve tray column

C Bubble cap column

D Packed tower

Review Detailed Answer

Correct Answer: Agitated vessel

Fenske equation determines the __________________?

A Maximum number of ideal plates

B Height of the distillation column

C Minimum number of theoretical plates

D Optimum reflux ratio

Review Detailed Answer

Correct Answer: Minimum number of theoretical plates

Pick out the wrong statement ?

A The mole fraction of solute is directly proportional to the molality of a ‘dilute’ solution

B For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both

C Azeotropes obey Raoult’s law at all temperature

D The relative volatility of a binary mixture at the Azeotropic composition is 1

Review Detailed Answer

Correct Answer: Azeotropes obey Raoult’s law at all temperature

_____________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid ?

A Dew point

B Bubble point

C Dry bulb temperature

D Wet bulb temperature

Review Detailed Answer

Correct Answer: Dew point

For absorbers, high pressure drop results in___________________?

A Increased efficiency

B Decreased efficiency

C High operating cost

D Better gas liquid contact

Review Detailed Answer

Correct Answer: High operating cost

The binary diffusivity in gases at atmospheric conditions is about ___________________?

A 10-9 cm/sec

B 10-1 cm2/sec

C 10-3 sec/cm

D 10-4 cm2/sec2

Review Detailed Answer

Correct Answer: 10-1 cm2/sec

Occurrence of ‘case hardening’ during drying of a high moisture solid cake _______________ the drying rate?

A Increases

B Decreases

C Does not affect

D Exponentially increases

Review Detailed Answer

Correct Answer: Decreases

Refractory bricks are usually dried in a ________________ dryer?

A Tray

B Tunnel

C Conveyor

D Festoon

Review Detailed Answer

Correct Answer: Tunnel

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Which of the following equipments is not used for gas dispersion ?

If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively ?

Hydrogenation of oil is carried out in a/an _______________ in Vanaspati manufacturing plant?

Fenske equation determines the __________________?

Pick out the wrong statement ?

_____________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid ?

For absorbers, high pressure drop results in___________________?

The binary diffusivity in gases at atmospheric conditions is about ___________________?

Occurrence of ‘case hardening’ during drying of a high moisture solid cake _______________ the drying rate?

Refractory bricks are usually dried in a ________________ dryer?