The vessel's owners have issued orders to...

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Question 1 of 2066636eef28f7522a1c5204c2

The vessel's owners have issued orders to reduce a motor vessel's speed to achieve a 10% reduction of fuel, for an extended period of time. As the senior engineer on board, what action should you take?

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🔍 Key Concepts

• Engine manufacturer’s recommendations for slow steaming or long-term derating • Effect of combustion efficiency and injection timing/nozzles at reduced load • Difference between a temporary operational adjustment and a long-term modification to machinery

💭 Think About

• Which option keeps the engine operating within its designed parameters for long-term reliability, rather than just meeting a fuel number? • At lower RPM and load, what happens to combustion quality, cylinder condition, and fouling if you do nothing to adapt the engine? • Which actions can you take on board immediately, and which require owner/yard/manufacturer involvement or modification of hardware?

✅ Before You Answer

• Verify which choice aligns with manufacturer-approved slow-steaming practices, not just short-term fuel savings. • Check which option explicitly considers combustion efficiency and long-term engine health, not only fuel rate. • Identify if any choice suggests making significant changes (like timing changes or hardware changes) without clear coordination with the manufacturer/owner.

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