Block Signal is best described as?

Block Signal is best described as?

• A. A fixed signal displayed to trains at the entrance of a block to govern use of that block.
• B. A signal in the engine control compartment.
• C. A blue signal.
• D. A bulletin order.

Answer: (A)

Block signals are fixed, trackside signals placed at the entrance to a block to govern the use of that block. They are visible to the train crew as you approach the boundary and tell you whether you may enter, must proceed with caution, or must stop, thereby controlling entry and movement through the block. They’re external to the locomotive’s cab and part of the trackside signaling system. A signal inside the engine control compartment describes cab signaling, not the fixed entrance signal for the block. A blue signal isn’t the standard block signal used to control entry, and a bulletin order is a written directive, not a trackside signal. So the best description is that it’s a fixed signal displayed at the block entrance to govern use of that block.

Block signals are fixed, trackside signals placed at the entrance to a block to govern the use of that block. They are visible to the train crew as you approach the boundary and tell you whether you may enter, must proceed with caution, or must stop, thereby controlling entry and movement through the block.

They’re external to the locomotive’s cab and part of the trackside signaling system. A signal inside the engine control compartment describes cab signaling, not the fixed entrance signal for the block. A blue signal isn’t the standard block signal used to control entry, and a bulletin order is a written directive, not a trackside signal. So the best description is that it’s a fixed signal displayed at the block entrance to govern use of that block.