Class 4 (4th Engineer) MEKG 📅 Nov 2024

Exam Question

(a) State why the presence of oil in boiler water is considered serious. (4)

(b) Suggest likely sources of oil contamination. (4)

(d) Describe how the whole steam plant is restored to oil free conditions. (4)

Reference Answer

The presence of oil in boiler water is a critical issue that demands immediate attention due to its severe detrimental effects on boiler operation, safety, and longevity. As a Senior MEO Class 1 Examiner, understanding these impacts and the restoration procedures is paramount.
**(a) State why the presence of oil in boiler water is considered serious. (4 marks)**
Oil in boiler water is considered extremely serious due to its profound negative impact on heat transfer efficiency, material integrity, and overall plant safety:
* **Impeded Heat Transfer and Localized Overheating:**

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