What type of light does the SH relay illuminate for a single shot GT?

What type of light does the SH relay illuminate for a single shot GT?

• A. Red light for stop
• B. Lunar white light for approach
• C. Flashing yellow light for caution
• D. Green light for go

Answer: (B)

The SH relay illuminates lunar white light for approach for a single shot GT because this specific type of light is used to signal the approaching train that it is in a safe condition to proceed towards an event or location. Lunar white light is typically used in railway signaling systems to indicate readiness for an incoming train, providing a clear and consistent signal that stands out under various conditions. This light is crucial for ensuring safety and efficiency in train operations, particularly when dealing with approaching trains or movements at junctions. The other lights mentioned are designated for different functions in railway signaling; red light is used to indicate a stop, flashing yellow light typically serves as a caution signal, and green light indicates that it is safe to proceed. Each of these serves a distinct purpose in the signaling protocol, which is why lunar white is the correct choice for signaling an approach.

The SH relay illuminates lunar white light for approach for a single shot GT because this specific type of light is used to signal the approaching train that it is in a safe condition to proceed towards an event or location. Lunar white light is typically used in railway signaling systems to indicate readiness for an incoming train, providing a clear and consistent signal that stands out under various conditions. This light is crucial for ensuring safety and efficiency in train operations, particularly when dealing with approaching trains or movements at junctions.

The other lights mentioned are designated for different functions in railway signaling; red light is used to indicate a stop, flashing yellow light typically serves as a caution signal, and green light indicates that it is safe to proceed. Each of these serves a distinct purpose in the signaling protocol, which is why lunar white is the correct choice for signaling an approach.