Process Variables (Flow, Pressure, Temperature, Level) — MCQs – EE

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1. Which of the following is not a primary process variable?



2. Flow, pressure, temperature, and level are collectively known as:



3. The flow of a fluid is defined as:



4. The SI unit of volumetric flow rate is:



5. A rotameter is used to measure:



6. A venturi meter works on the principle of:



7. The orifice plate is used for measuring:



8. A Pitot tube measures:



9. The differential pressure transmitter in a flow meter measures:



10. The pressure of a fluid is defined as:



11. The SI unit of pressure is:



12. The Bourdon tube is commonly used to measure:



13. The manometer is based on the principle of:



14. The piezoelectric transducer is used for measuring:



15. Temperature is a measure of:



16. The SI unit of temperature is:



17. A thermocouple works on the principle of:



18. An RTD (Resistance Temperature Detector) measures temperature by:



19. A thermistor is made of:



20. The thermistor has a:



21. The temperature transmitter converts temperature signals into:



22. The level of a liquid in a tank can be measured using:



23. A differential pressure level transmitter works on the principle that:



24. The ultrasonic level sensor works on:



25. The capacitance-type level sensor works based on:



26. The sight glass is used to:



27. The float-type level indicator is suitable for:



28. The turbine flow meter is used to measure:



29. The Coriolis flow meter measures:



30. The magnetic flow meter requires the fluid to be:



31. The V-notch weir is used to measure:



32. The pressure transmitter output is typically:



33. The gauge pressure is measured relative to:



34. The absolute pressure is measured relative to:



35. The differential pressure is:



36. The temperature range of a thermocouple depends on:



37. The level transmitter in pressurized vessels must use:



38. The vapor pressure of a liquid increases with:



39. Flow rate in a pipeline can be increased by:



40. The accuracy of process variable measurement mainly depends on:



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