In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the ______________ variable?
Correct answer: C. Manipulated
- A. Load
- B. Controlled
- C. Manipulated
- D. None of these
Explanation
The heating or cooling-fluid flow rate is adjusted by the controller to influence shell temperature, so it is the manipulated variable. Shell temperature is the controlled variable, while disturbances such as process load are load variables.
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