Q. Phase lag of the frequency response of a second order system to a sinusoidal forcing function
✅ Correct Answer: (C)
Approaches 180° asymptotically
Process Control And Instrumentation MCQs | Page - 1
Dear candidates you will find MCQ questions of Process Control And Instrumentation here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Which of the following is not classified as a thermo electric pyrometer?
✅ Correct Answer: (D)
Optical pyrometer (disappearing filament type)
Q. The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple.
✅ Correct Answer: (B)
Iron-constantan
Q. __________ are analysed using a polarograph.
✅ Correct Answer: (B)
Solids
Q. __________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'.
✅ Correct Answer: (C)
Reumur
Q. Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer.
✅ Correct Answer: (C)
Photoelectric
Q. Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an
✅ Correct Answer: (C)
Magnetic flow meter
Q. Response of a linear control system for a change in set point is called
✅ Correct Answer: (C)
Servo problem
Q. Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is
✅ Correct Answer: (B)
36
Q. Which of the following measurements can be made by the measurement of emf?
✅ Correct Answer: (D)
All of the above
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