What term describes a fixed signal indicating a condition which affects the movement of a train?

• A. Home Signal
• B. Block Signal
• C. Indication
• D. Fixed Signal

Answer: (D)

A fixed signal is the trackside device that conveys information about conditions affecting a train’s movement. It’s an immovable signal installed along the line, whose purpose is to indicate whether the train may proceed, must stop, or proceed with restrictions based on the route or block status. The term describes the device itself, not the specific message it shows. A home signal is a type of fixed signal used at the entry to a block, and a block signal refers to signals that indicate block occupancy, while indication is the actual message or aspect shown by the signal. So the correct term for this fixed device is fixed signal.