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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.

In counter flow compared to parallel flow, ?

A LMTD is greater

B Less surface area is required for a given heat transfer rate

C Both A. and B.

D More surface area is required for a given heat transfer rate

Review Detailed Answer

Correct Answer: Both A. and B.

Mode of heat transfer involved in the cooling of air cooled internal combustion engine is_________________?

A Conduction

B Natural convection

C Forced convection

D None of these

Review Detailed Answer

Correct Answer: Natural convection

In a single effect evaporator, the economy is________________?

A 1

B < 1

C > 1

D None of these

Review Detailed Answer

Correct Answer: 1

Small scale evaporation is done in a_________________?

A Heat exchanger

B Condenser

C Multiple effect evaporator

D Steam jacketed kettle

Review Detailed Answer

Correct Answer: Steam jacketed kettle

In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always__________________?

A < 1

B > 1

C 1

D ∞

Review Detailed Answer

Correct Answer: < 1

Low thermal conductivity of heat insulating materials is due to its_________________?

A Dense structure

B High proportion of air space

C High specific heat

D None of these

Review Detailed Answer

Correct Answer: High proportion of air space

Low thermal conductivity of heat insulating materials is due to its_______________?

A Dense structure

B High proportion of air space

C High specific heat

D None of these

Review Detailed Answer

Correct Answer: High proportion of air space

In case of a vertical tube evaporator, with increase in the liquor level, the___________________?

A Capacity of the evaporator is decreased

B Capacity of the evaporator is increased

C True temperature drop increases

D Both B. and C.

Review Detailed Answer

Correct Answer: Capacity of the evaporator is decreased

The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the___________________?

A Heating volume

B Heat transfer area

C Nusselt number

D None of these

Review Detailed Answer

Correct Answer: Heat transfer area

Thermal diffusivity is given by__________________?

A k/ρCp

B ρCp/k

C μCp/a

D μ/hCp

Review Detailed Answer

Correct Answer: k/ρCp

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In counter flow compared to parallel flow, ?

Mode of heat transfer involved in the cooling of air cooled internal combustion engine is_________________?

In a single effect evaporator, the economy is________________?

Small scale evaporation is done in a_________________?

In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always__________________?

Low thermal conductivity of heat insulating materials is due to its_________________?

Low thermal conductivity of heat insulating materials is due to its_______________?

In case of a vertical tube evaporator, with increase in the liquor level, the___________________?

The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the___________________?

Thermal diffusivity is given by__________________?