What does the S relay illuminate when the signal aspect is yellow?

What does the S relay illuminate when the signal aspect is yellow?

• A. S light for slow
• B. Red light for stop
• C. Green light for proceed
• D. White light for caution

Answer: (A)

The S relay illuminates the S light for slow when the signal aspect is yellow. This signal indicates to operators that they must reduce their speed as they approach a potentially dangerous condition or an upcoming stop signal. The yellow light serves as a warning to be prepared for the possibility of needing to stop. It is crucial in maintaining safety and coordination in rail operations, as it gives operators a clear indication to proceed with caution while being alert for any changes in the signal that may require a complete stop.

The S relay illuminates the S light for slow when the signal aspect is yellow. This signal indicates to operators that they must reduce their speed as they approach a potentially dangerous condition or an upcoming stop signal. The yellow light serves as a warning to be prepared for the possibility of needing to stop. It is crucial in maintaining safety and coordination in rail operations, as it gives operators a clear indication to proceed with caution while being alert for any changes in the signal that may require a complete stop.