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.

1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is________________________?

A 0.4

B 0.25

C 0.2

D 0.175

Review Detailed Answer

Correct Answer: 0.2

Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the _______________ moisture?

A Bound

B Unbound

C Critical

D None of these

Review Detailed Answer

Correct Answer: Bound

Which of the following is not a continuous drier ?

A Drum drier

B Spray drier

C Tunnel drier

D Tray drier

Review Detailed Answer

Correct Answer: Tray drier

In an operating distillation column, the______________________?

A Vapors and liquids are at their dew point and bubble point respectively

B Driving force for the liquid flow is its specific weight

C Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from

D Highest temperature is encountered at the top of the column

Review Detailed Answer

Correct Answer: Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from

As per Gilliland’s equation, the diffusivity is___________________?

A Directly proportional to ‘T1.5’

B Inversely proportional to ‘P’

C Dependent on the molecular volume & molecular weight of components

D All A , B. & C.

Review Detailed Answer

Correct Answer: All A , B. & C.

Pick out the wrong statement ?

A Reboiler is not used in open steam distillation

B The separation of solutes of different molecular sizes in a liquid solution by use of a suitable

C Freeze drying is used for the drying of fish

D Fenske-Underwood equation is used for calculating theoretical number of plates in a

Review Detailed Answer

Correct Answer: Fenske-Underwood equation is used for calculating theoretical number of plates in a

Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the ________________ of a fibre ?

A Electrical resistance

B Thermal conductivity

C Strength

D None of these

Review Detailed Answer

Correct Answer: Electrical resistance

Which is the controlling factor for a drum drier ?

A Diffusion

B Heat transfer

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Heat transfer

A minimum boiling azeotrope is exemplified by__________________________?

A Toluene-benzene

B Acetone-carbon disulphide

C Water-isobutyl alcohol

D None of these

Review Detailed Answer

Correct Answer: Acetone-carbon disulphide

Relative volatility does not change appreciably with the change in_____________________?

A Temperature

B Vapour pressure of either component

C Total pressure

D None of these

Review Detailed Answer

Correct Answer: Temperature

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is________________________?

Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the _______________ moisture?

Which of the following is not a continuous drier ?

In an operating distillation column, the______________________?

As per Gilliland’s equation, the diffusivity is___________________?

Pick out the wrong statement ?

Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the ________________ of a fibre ?

Which is the controlling factor for a drum drier ?

A minimum boiling azeotrope is exemplified by__________________________?

Relative volatility does not change appreciably with the change in_____________________?