Bay Area Rapid Transit (BART) Practice Exam 2025 - Free BART Practice Questions and Study Guide

Question: 1 / 400

What does a flashing yellow light signify in a train car?

Doors are closing

Emergency situation

Brake check is required

Low brake hydraulic pressure

A flashing yellow light in a train car signifies low brake hydraulic pressure. This indication is crucial as it alerts train operators and personnel that there may be an issue with the braking system, which could impair the train’s ability to stop effectively. It represents a potential safety concern that needs immediate attention to ensure the operational integrity of the train.

The other options represent different signals or conditions that are not associated with a flashing yellow light. For example, a steady light might indicate doors closing or an emergency situation, while other specific signals are used for different mechanical or operational alerts, like a brake check requirement. Therefore, understanding the specific implication of the flashing yellow light is vital for safe train operation and maintenance.

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