What statement is true concerning the purpose of an independent main thrust bearing where used?

Correct Answer: Option A — The main purpose of the main thrust bearing is to absorb axial thrust and to transmit the axial thrust developed by the propeller to the ship's hull.

The main thrust bearing is a critical component designed to absorb the axial force generated by the propeller. It transmits this force directly to the ship's hull structure, preventing the thrust from damaging the reduction gears or the engine's internal components, ensuring the shaft remains properly positioned.