Block signals are also called what?

Block signals are also called what?

• A. Interlocking signals
• B. Fixed signals
• C. Intermediate signals
• D. Dwarf signals

Answer: (C)

Block signals are the fixed indicators placed along the track to govern entry into each successive block, telling the train if the block ahead is clear or occupied. In many signaling schemes, the signals that sit at intermediate points between major control sites (like stations or interlockings) are called intermediate signals. They perform the same duty as block signals—safely controlling progress—but the term highlights their position between key control points on the line. They’re not interlocking signals, which manage routes at junctions, nor dwarf signals (which are small, low-height signs), and calling them “fixed signals” is too generic for the specific placement and role described.

Block signals are the fixed indicators placed along the track to govern entry into each successive block, telling the train if the block ahead is clear or occupied. In many signaling schemes, the signals that sit at intermediate points between major control sites (like stations or interlockings) are called intermediate signals. They perform the same duty as block signals—safely controlling progress—but the term highlights their position between key control points on the line. They’re not interlocking signals, which manage routes at junctions, nor dwarf signals (which are small, low-height signs), and calling them “fixed signals” is too generic for the specific placement and role described.