Class 4 (4th Engineer) MEKG 📅 Jul 2022

Exam Question

(a) Sketch and describe the operating principles of an oily water separator. State the regulatory requirements including the oil record book. (10)

(b) Explain the importance and working of the Bilge alarm monitoring and control unit as fitted in the bilge system. (6)

Reference Answer

### (a) Oily Water Separator (OWS)
#### Operating Principles
An Oily Water Separator (OWS) is a piece of marine pollution prevention equipment designed to remove oil from bilge water before it is discharged into the sea. Its operation is based on the principle of the difference in specific gravity between oil and water, and modern units employ a multi-stage process for effective separation.
**1. Stage 1: Gravity Separation Chamber**

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