What aspect must candidates demonstrate regarding ship systems?

Candidates must demonstrate in-depth technical proficiency regarding ship systems because this level of understanding is crucial for the effective operation and management of those systems. In-depth technical proficiency allows candidates to grasp complex concepts, troubleshoot issues, and ensure that operations are conducted safely and efficiently. It also equips them with the knowledge to work collaboratively within teams and respond to emergencies involving various ship systems.

While operational awareness and personal experience can be beneficial, they do not equate to the comprehensive understanding that in-depth technical proficiency provides. Knowing only one's specific duty station would limit a candidate's ability to contribute to the overall effectiveness of the ship and its operations. In-depth knowledge broadens the candidate’s ability to understand interactions between different systems and the ship's operational capabilities as a whole.