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← TechnologyWhich outcome occurs when excessive electrical noise interferes with a PLC's analog input module controlling a chemical reactor's temperature?
A)Oscillating reactor temperature readings✓
B)Complete cessation of control actions
C)Valve actuator thermal runaway damage
D)Power supply unit over-voltage failure
💡 Explanation
Oscillating reactor temperature readings occur because electromagnetic interference causes the Analog-to-Digital Conversion fluctuations within the PLC. Therefore, unstable temperature control results, rather than a complete shutdown because the PLC continues to operate, though erratically.
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