Question 244General Subjects - 1st Asst/Chief
70% to passControl system diagrams use standard symbols to describe the component function required for the system to achieve its intended control functions. Standard symbols are used to allow engineers to describe the logic and component functions. Define the function of symbol "I" as shown in the illustration. See Illustration GS-0180
AHigh Select Signal Processor.
BIntegral Processor.
CLow Select Signal Processor.
DDifference Signal Processor.
AI Explanation
The correct answer is C) Low Select Signal Processor. The symbol "I" in control system diagrams represents a low select signal processor, which is a component that selects the lowest signal from multiple inputs. This allows the control system to prioritize the lowest value, which can be important for safety or other critical functions. The other options are incorrect because: A) High Select Signal Processor would select the highest signal, not the lowest; B) Integral Processor refers to a different component that performs integration calculations; and D) Difference Signal Processor would output the difference between two signals, not select the lowest.
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