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EK-Motor : 2025/OCT/03
Question

Q3. a) State, with reasons, the properties required of a lubricating oil for a trunk piston type, medium speed engine, indicating why some properties differ from those required of a lubricating oil used in the crankcase of a crosshead diesel engine. (6)

b) Describe, with the aid of a sketch, the lubrication system of a trunk piston medium speed engine, explaining how lubrication effectiveness is assured. (10)

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