logo

CuriousTab

CuriousTab

Discussion

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

  • 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.

  • Correct Answer
  • The amplitude ratio of a pure capacity process is inversely proportional to frequency. 

    • Process Control and Instrumentation problems

    Search Results

    • 1. 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
    • 2. Flapper nozzle is used in a/an __________ controller.

    • Options
    • A. electronic
    • B. hydraulic
    • C. pneumatic
    • D. none of these
      • Discuss
    • 3. Transfer function of transportation lag is

    • Options
    • A. eTS
    • B. e-TS
    • C.
    • D. none of these
      • Discuss
    • 4. 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
    • 5. 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
    • 6. Load cells are used for the measurement of

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

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. The __________ of a vapor pressure thermometer is a functioning element.

    • Options
    • A. pointer
    • B. bourdon tube
    • C. bulb
    • D. none of these
      • Discuss
    • 9. For an input forcing function, X(t) = 2t2, the Laplace transform of this function is

    • Options
    • A. 2/s2
    • B. 4/s2
    • C. 2/s3
    • D. 4/s3
      • Discuss
    • 10. Temperature measuring instruments are standardised mostly with __________ points of pure substances.

    • Options
    • A. melting
    • B. boiling
    • C. both (a) & (b)
    • D. neither (a) nor (b)
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.