During a vessel dry-docking survey which of the following items are typically required by Class to be surveyed?

Correct Answer: Option C — Sea chests, tail shaft wear down readings and rudder assembly.

Classification society rules require a thorough examination of the underwater hull and appendages during dry-docking. This includes inspecting sea chests for integrity, measuring tail shaft wear down to ensure bearing clearances are within limits, and verifying the condition of the rudder assembly to ensure safe and reliable vessel maneuverability.