What is the main function of the lubricating oil crosshead bearings in a two-stroke marine diesel engine?
Direct Answer
Option A: Provide high-pressure oil film to withstand heavy piston combustion loads
Crosshead bearings in large two-stroke marine diesel engines endure extreme unidirectional and alternating combustion loads transmitted from the piston. A continuous high-pressure lubricating oil film is essential to prevent metal-to-metal contact and withstand these massive mechanical forces.
All Options
Detailed Explanation & Context
Crosshead bearings in large two-stroke marine diesel engines endure extreme unidirectional and alternating combustion loads transmitted from the piston. A continuous high-pressure lubricating oil film is essential to prevent metal-to-metal contact and withstand these massive mechanical forces.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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