In pneumatic control systems the control valve used as final control element converts____________?
Correct answer: B. pressure signal to position change
- A. pressure signal to electric signal
- B. pressure signal to position change
- C. electric signal to pressure signal
- D. position change to pressure signal
- E. none of the above
Explanation
In a pneumatic control system, the valve actuator receives a pneumatic pressure signal and converts it into mechanical stem or plug position. This position change regulates the process fluid, matching option b.
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