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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.

Feed forward controller accounts for the ______________ changes?

A Set point

B Load

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Load

Thermal wells are used in the temperature measurement to____________________?

A Guard against corrosive and oxidising action on thermocouple materials

B Reduce measuring lag

C Increase the fidelity

D Increase the sensitivity

Review Detailed Answer

Correct Answer: Guard against corrosive and oxidising action on thermocouple materials

Liquid flow rate in a small channel is best measured by a/an____________________?

A Weir

B Pitot tube

C Vane meter

D Venturimeter

Review Detailed Answer

Correct Answer: Pitot tube

A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is______________?

A 45°

B -90°

C -180°

D -45°

Review Detailed Answer

Correct Answer: 45°

Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C ?

A Mercury thermometer

B Bimetallic thermometer

C Radiation pyrometer

D None of these

Review Detailed Answer

Correct Answer: Bimetallic thermometer

What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple ?

A 0.1

B 3

C 13

D 29

Review Detailed Answer

Correct Answer: 3

Cascade control means _______________?

A Feed forward control

B More than one feed-back loop

C On-off control

D One feed-back loop

Review Detailed Answer

Correct Answer: More than one feed-back loop

In Bode plot, φ vs. ω is plotted on a/an ______________ graph paper?

A log-log

B Ordinary

C Semi-log

D Triangular

Review Detailed Answer

Correct Answer: log-log

Which of the following thermocouples has the widest temperature measurement range ?

A Iron-constantan

B Chromel-alumel

C Copper-constantan

D Platinum-platinum/rhodium

Review Detailed Answer

Correct Answer: Platinum-platinum/rhodium

The thermal emf-temperature relationship of most thermocouples is_________________?

A Linear

B Parabolic

C Exponential

D Square root

Review Detailed Answer

Correct Answer: Parabolic

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Feed forward controller accounts for the ______________ changes?

Thermal wells are used in the temperature measurement to____________________?

Liquid flow rate in a small channel is best measured by a/an____________________?

A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is______________?

Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C ?

What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple ?

Cascade control means _______________?

In Bode plot, φ vs. ω is plotted on a/an ______________ graph paper?

Which of the following thermocouples has the widest temperature measurement range ?

The thermal emf-temperature relationship of most thermocouples is_________________?