Question 16

The Correct Answer is A. The device on the bridge that specifically displays the rudder's actual physical position (the angle of the rudder relative to the centerline of the ship) is the **rudder angle indicator** (sometimes called the helm angle indicator). This instrument is essential for the helmsman and officer of the watch to verify that the rudder has moved to the commanded position. ### Why Other Options Are Incorrect: **B) follow-up gear:** The follow-up gear is a mechanical component (part of the steering control system, often related to the hunting gear) in the steering engine room that transmits the movement of the steering gear back to the control system, stopping the steering engine when the rudder reaches the commanded position. It is an internal control mechanism, not a display device on the bridge. **C) telemotor position:** The telemotor is a system (often hydraulic) used to transmit the steering command (the movement of the wheel) from the bridge to the steering gear in the stern. "Telemotor position" refers to the input command signal being sent, not the actual, verified physical position of the rudder being displayed back on the bridge. **D) Rapson slide indicator:** The Rapson slide is a specific type of mechanical linkage (a guide mechanism) commonly used in the steering gear engine room to connect the hydraulic rams (or cylinders) to the rudder stock. It is a structural component of the steering gear machinery, not an indicator device on the bridge.