Which risk significantly increases when the lambda of a gasoline engine drifts lean?

💡 Explanation

Fuel-lean conditions elevate exhaust temperatures; the catalytic converter overheats because oxidation reactions on the platinum and palladium surfaces increase exponentially. Therefore converter failure risk rises, rather than reduced knock since excessively lean mixtures cause pre-ignition.

• Which outcome occurs when a large inductive load energizes near power grid resonance resulting in amplified voltage oscillations?
• Which risk significantly increases during concrete beam flexure when shear force exceeds capacity of stirrups?
• Which hazard is enhanced when hydraulic actuator seals shear?
• Which malfunction indicates excessive reverse saturation current at BJT junction?
• Which consequence results when turbine over-speeding in turboprop aircraft?
• Which outcome occurs when a ground fault circuit interrupter detects imbalance in a single-phase AC circuit?