Which consequence results when a hydraulic system check valve vibrates?

💡 Explanation

Hydraulic check valve vibration induces fretting wear at sealing surfaces, causing premature O-ring degradation because the repeated micro-movements break down the elastomeric material via surface fatigue; therefore the seal fails, rather than fluid property changes or improved flow.

• Which risk increases when a commercial aircraft attempts landing with significant ice accumulation?
• Which risk increases when the breaker-failure protection system malfunctions in a large electrical substation?
• Which consequence results when unburnt fuel washes down cylinder walls?
• Which risk increases when a robotic arm uses an incremental encoder without homing?
• Which consequence results when a transformer's protection circuit repeatedly trips?
• Which outcome results when concrete cover over rebar is insufficient in marine environment?