While standing an "at sea watch" onboard a modern rectified DC diesel-electric drive ship you notice the transformer core temperature slowly rising. What should be your FIRST action?
• Basic electrical troubleshooting sequence: always check simple, likely causes before taking drastic actions • Transformer cooling and ventilation: how core temperature is normally controlled • Safety and system impact: which actions could unnecessarily affect ship operations or create risk
• Which option lets you verify the most likely, least invasive cause of a SLOW temperature rise before you change ship speed or start tripping circuits? • Does the question mention any signs of fire, smoke, or rapid overheating that would justify emergency actions? • On a diesel-electric ship, which action would have the biggest impact on propulsion and ship operations, and should that ever be your first step for a gradual temperature rise?
• Confirm whether there are any indications of fire before sending someone to look for one • Consider which choice involves normal cooling/ventilation checks rather than changing load or speed • Ask yourself which action is diagnostic and reversible, and appropriate for a SLOW rising temperature, not an emergency spike
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