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Q2.a) Explain the function of thrust bearings in marine engines and why they are critical for the propulsion system. Define the roles of ahead and astern thrust bearings in marine propulsion systems. Why is it essential to have both types of thrust bearings in a ship’s main engine setup. (8)

b) Explain how the ahead and astern thrust bearings handle the directional thrust generated by the propeller. Discuss the procedures for monitoring their condition and ensuring they are adequately supporting the load in both operational directions. (8)