Exam Question
(a) List and explain the desirable properties of lubricating oil for different application such as for main engine, auxiliary engine and for cyliner lubrication (8)
(b) Sketch an auxiliary engine lubricating oil circuit.
Class 4 (4th Engineer)
MEKM
📅 Oct 2024
Reference Answer
### (a) Desirable Properties of Marine Lubricating Oils
A detailed explanation of the properties required for lubricating oils in different marine applications is as follows:
#### 1. Main Engine Crankcase Oil (System Oil for Crosshead Engines)
This oil lubricates the main bearings, crosshead bearings, and connecting rod bearings, and also serves as a hydraulic medium and coolant for pistons.
A detailed explanation of the properties required for lubricating oils in different marine applications is as follows:
#### 1. Main Engine Crankcase Oil (System Oil for Crosshead Engines)
This oil lubricates the main bearings, crosshead bearings, and connecting rod bearings, and also serves as a hydraulic medium and coolant for pistons.
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