Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic?
Options
A. CO2
B. O2
C. NO
D. NO2
Correct Answer
CO2
Process Control and Instrumentation problems
Search Results
1. Routh test
Options
A. criterion provides information about the actual location of roots.
B. cannot be used to test the stability of a control system containing transportation lag.
C. criterion is not applicable to systems with polynomial characteristic equation.
D. can not determine as to how many roots of the characteristics equation have positive real roots.
Correct Answer: cannot be used to test the stability of a control system containing transportation lag.
2. To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with
is
