What is the effect of a clogged air filter in the air brake system?

Answer: C — Reduced airflow to the compressor, leading to inadequate brake function

A clogged air filter in the air brake system restricts the flow of air into the system. This reduced airflow leads to the compressor being unable to function optimally, which in turn affects the overall pressure and availability of air in the brake system. When the compressor does not receive enough air, it might not generate sufficient pressure for the brakes to operate effectively. This can result in inadequate braking performance, such as slower response times or an inability to achieve the necessary brake pressure needed for safe stopping. Thus, the consequence of a clogged air filter is a decrease in airflow to the compressor, severely hindering the braking capability of the vehicle.