NIFE Weather Practice Exam

Induction icing occurs when moisture in the air freezes on the surfaces of the engine's induction system, specifically the air intake. This accumulation of ice restricts airflow to the engine, effectively causing a reduction in the amount of air available for combustion. As a result, the engine may struggle to maintain proper air-fuel ratios, which can seriously disrupt engine performance.

When icing occurs, it can lead to engine flameout, which is a condition where the engine loses power or completely shuts down due to insufficient airflow and, consequently, inadequate combustion. This phenomenon is particularly critical in aviation, where sustained engine operation is vital for flight safety and performance.

In contrast, the other possibilities, such as efficient fuel burning or increased power output, would not occur under icing conditions. Induction icing has a detrimental impact, preventing proper engine function and potentially leading to catastrophic engine failure, which emphasizes the importance of understanding and recognizing the risks associated with induction icing.