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Class 2 (2nd Engineer) MEKG 📅 Sep 2024

Exam Question

(a) Explain the key parameters tested during the laboratory analysis of marine fuel oil and their impact on engine operation if they are not in range (8)

(b) What remedial measures should be taken if the fuel oil parameters are found to be out of acceptable range? Discuss the potential actions for issues like high water content, excessive sulphur, low flashpoint, Acid number and Ash content. (8)

Reference Answer

### (a) Key Fuel Oil Parameters and Their Impact
Laboratory analysis of marine fuel oil is crucial for ensuring compliance with regulations, safeguarding machinery, and ensuring efficient operation. The key parameters tested are as follows:
1. **Viscosity**
* **Significance**: A measure of a fluid's resistance to flow. It dictates the temperature required for correct injection and atomization. It is typically measured in centistokes (cSt) at 50°C.

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