Question 24 UFIV01 - Chief Engineer - UFIV

The Correct Answer is A ### Explanation of Why Option A is Correct: In typical marine propulsion control systems, especially those using pneumatic remote control (like the one described for the mollusc dredger), the main transfer of control authority is handled at the **engine room** control station. The engine room (or local control station) generally holds the ultimate local control and is the point where the operator determines whether the engine is controlled locally (at the engine room control station) or remotely (usually the pilot house/bridge). Therefore, the transfer valve located at the engine room station is the mechanism used to shift control priority between the **Engine Room Control Station** (local/emergency) and the **Pilot House Pneumatic Master Control Station** (remote operating station). ### Explanation of Why Other Options Are Incorrect: **B) The transfer valve at the pilot house pneumatic master control station is used to transfer control of propulsion from the pilot house master control station to the mechanical slave remote control station or vice versa.** * **Incorrect:** The pilot house station is usually the primary remote control point (the master). It does not typically house a valve to transfer control to a "mechanical slave remote control station." Control transfer is almost universally managed between the *local* (engine room) and the *remote master* (pilot house). **C) The transfer valve at the pilot house pneumatic master control station is used to transfer control of propulsion from the pilot house master control station to the engine room control station or vice versa.** * **Incorrect:** While this describes the correct control points involved in the transfer (Pilot House $\leftrightarrow$ Engine Room), the physical transfer valve used to switch control authority is almost always located and operated at the **Engine Room Control Station**, not the Pilot House Master Control Station. **D) The transfer valve at the pneumatic remote-control station is used to transfer control of propulsion from the pneumatic remote-control station to the mechanical slave remote control station or vice versa.** * **Incorrect:** This option describes a transfer between two types of remote stations (pneumatic and mechanical slave). This configuration is highly atypical. The fundamental control transfer involves moving authority between the local control (Engine Room) and the main remote control (Pilot House/Bridge).