Fuel Metering Systems Practice Test 2025 – All-in-One Resource for Exam Success!

When a turbine engine experiences false high compression, the most probable outcome is a subsequent low trim. This phenomenon occurs because false high compression may indicate that the engine is not operating within its intended parameters. As the engine's control system detects an anomalously high level of compression, it adjusts the fuel flow and air management in an attempt to maintain optimal performance. This adjustment can lead to a low trim condition, meaning that the control system reduces fuel delivery to compensate for what it interprets as a higher than normal combustion efficiency.

This response is crucial because it helps maintain overall engine stability and performance, preventing potential damage that could arise from rich fuel conditions or excessive pressure. In essence, the system compensates for the misleading information about compression to ensure safe and efficient engine operation.

The other potential outcomes like an increase in fuel consumption, a reduction in engine temperature, or an improvement in acceleration do not align with the nature of how control systems react to indications of false compression. Instead, they would typically be consequences of different operational issues rather than a direct result of false high compression.