Which risk increases when uncombusted fuel enters an engine's exhaust stream?

💡 Explanation

The risk increases because uncombusted fuel reaching the catalytic converter undergoes rapid oxidation via catalytic action, resulting in excessive heat. This positive feedback causes thermal runaway, rather than bearing friction, because crankshaft issues relate more to lubrication failures rather than fuel in the exhaust.

• Which risk increases with capacitive energization of unloaded power transformers?
• Which risk increases when a power MOSFET operating near its rated voltage experiences a sudden inductive load disconnection?
• Which protective action first occurs when transformer oil temperature exceeds alarm threshold?
• Which consequence results when a robotic arm's inverse kinematics solver generates multiple valid, but highly disparate, joint angle sets?
• Which risk increases when hydraulic actuator velocity exceeds design limits in precision robotics?
• Which outcome occurs when the fluid viscosity falls below threshold in a hydraulic system utilizing spool valve flow control?