The inlet barrier filter system prevents which type of particles from entering?

• A. The engine
• B. The cockpit ventilation system
• C. The transmission oil cooler
• D. The cabin ventilation system

Answer: (A)

The inlet barrier filter system is specifically designed to prevent contaminants from entering the engine. This system plays a critical role in maintaining engine performance and longevity by filtering out particulates such as dust, dirt, and other airborne debris that can adversely affect engine operation. By ensuring that only clean air reaches the engine, the inlet barrier filter helps to optimize combustion and reduce the likelihood of wear or damage to the engine components.

In contrast, the other options refer to systems that are not directly protected by the inlet barrier filter. The cockpit ventilation system, transmission oil cooler, and cabin ventilation system have different filtering requirements or mechanisms for ensuring cleanliness and would rely on other types of filters or screens designed for their specific purposes. Therefore, the primary function of the inlet barrier filter system focuses on safeguarding the engine from harmful particles.