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← TechnologyWhich condition reliably triggers chatter in a solenoid valve?
A)Supply voltage falls below holding✓
B)Hydraulic fluid viscosity exceeds limits
C)Internal valve leakage reduces rapidly
D)Ambient temperature rapidly increases dramatically
💡 Explanation
Voltage droop forces the solenoid's armature to fluctuate because insufficient electromagnetic force causes rapid cycling of the valve poppet; this is called *magnetic hysteresis*. Therefore chatter occurs, rather than consistent opening, due to the solenoid failing to remain fully engaged.
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