Which consequence results when lubricant supply fails concurrently with high engine load on an internal combustion engine?

💡 Explanation

Bearing seizure occurs because lubrication failure during high-load operation increases friction; frictional heat generation causes the crankshaft bearing material to exceed its melting point. This leads to thermal seizure, therefore option A, rather than injector problems or valve/gasket issues.

• Which failure is more probable when a high-voltage direct current (HVDC) transmission line accumulates ice?
• Which risk dramatically increases because progressive surface wear degrades the bypass valve's performance within a hydraulic actuator?
• Which risk increases in hydraulic systems employing long, unsupported flexible hoses experiencing rapid pressure changes?
• Which consequence escalates when exceeding the reverse breakdown voltage of a p-n junction diode under high-frequency switching?
• Which operational risk escalates when heat input surpasses design limits in vapour-compression refrigeration?
• Which cascading instability results when protective impedance relay settings are improperly coordinated across interconnected transmission lines?