Discussion
Home ‣ Chemical Engineering ‣ Process Control and Instrumentation Comments
- Question
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
- Correct Answer
- 0.5
- 1. Which of the following is the dynamic characteristics of an instrument?
Options- A. Reproducibility
- B. Sensitivity
- C. Dead zone
- D. Fidelity Discuss
- 2. Thermal conductivity measurement com-prises the working principle of a
Options- A. CO2 analyser
- B. polarimeter
- C. spectrometer
- D. chromatograph Discuss
- 3. Esterification reaction
Options- A. produces soap.
- B. is reversible.
- C. is a reaction between an alcohol and an organic acid.
- D. all (a), (b) and (c). Discuss
- 4. Pasteurisation of milk means
Options- A. removal of fatty and albuminous substance from it.
- B. killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
- C. inhibiting the growth of micro-organisms without killing them.
- D. none of these. Discuss
- 5. Claude process of gas liquefaction employs
Options- A. merely compression of gas beyond its critical pressure.
- B. Joule-Thomson expansion cooling.
- C. heat exchange with colder stream.
- D. adiabatic expansion against a piston or in a turbine. Discuss
- 6. Response of a system to a sinusoidal input is called __________ response.
Options- A. impluse
- B. unit step
- C. frequency
- D. none of these Discuss
- 7. 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
- 8. 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
- 9. Transfer function of transportation lag is
Options- A. eTS
- B. e-TS
- C.
- D. none of these Discuss
- 10. Flapper nozzle is used in a/an __________ controller.
Options- A. electronic
- B. hydraulic
- C. pneumatic
- D. none of these Discuss
Process Control and Instrumentation problems
Search Results
Correct Answer: Fidelity
Correct Answer: CO2 analyser
Correct Answer: all (a), (b) and (c).
Correct Answer: killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
Correct Answer: adiabatic expansion against a piston or in a turbine.
Correct Answer: frequency
Correct Answer: thermocouple
Correct Answer: both (a) and (b)
Correct Answer: e-TS
Correct Answer: pneumatic
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.