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Home ‣ Chemical Engineering ‣ Process Control and Instrumentation Comments
  • Question

  • Transfer function of transportation lag is


  • Options
  • A. eTS
  • B. e-TS
  • C. Transfer function of transportation lag is eTS e-TS none of these
  • D. none of these

  • Correct Answer
  • e-TS 

    • Process Control and Instrumentation problems

    Search Results

    • 1. Strain gage pressure transducers are used to measure __________ pressures.

    • Options
    • A. gage as well as vacuum
    • B. absolute as well as differential
    • C. both (a) and (b)
    • D. neither (a) nor (b)
      • Discuss
    • 2. Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

    • Options
    • A. thermocouple
    • B. reistance thermometer
    • C. mercury in glass thermometer
    • D. vapor pressure thermometer
      • Discuss
    • 3. Response of a system to a sinusoidal input is called __________ response.

    • Options
    • A. impluse
    • B. unit step
    • C. frequency
    • D. none of these
      • Discuss
    • 4. The second order system with the transfer function has a damping ratio of

    • Options
    • A. 2.0
    • B. 0.5
    • C. 1.0
    • D. 4.0
      • Discuss
    • 5. Which of the following is the dynamic characteristics of an instrument?

    • Options
    • A. Reproducibility
    • B. Sensitivity
    • C. Dead zone
    • D. Fidelity
      • Discuss
    • 6. Flapper nozzle is used in a/an __________ controller.

    • Options
    • A. electronic
    • B. hydraulic
    • C. pneumatic
    • D. none of these
      • Discuss
    • 7. Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?

    • Options
    • A. Radiation/infrared pyrometer
    • B. Filled system thermometer
    • C. Mercury in glass thermometer
    • D. Thermo electric pyrometer
      • Discuss
    • 8. Select the correct statement from the following.

    • Options
    • A. The frequency response of a pure capacity process is unbounded.
    • B. The phase lag of a pure time delay system decreases with increasing frequency.
    • C. The amplitude ratio of a pure capacity process is inversely proportional to frequency.
    • D. The amplitude ratio of a pure time delay system increases with frequency.
      • Discuss
    • 9. Load cells are used for the measurement of

    • Options
    • A. stress
    • B. weight
    • C. strain
    • D. velocity
      • Discuss
    • 10. The symbol for "capillary line" in instrumentation diagram is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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