What are the three levels of maintenance?

• A. Depot, Operational, Intermediate
• B. Operational, Tactical, Field
• C. Basic, Intermediate, Advanced
• D. Local, Fleet, Industrial

Answer: (A)

The three levels of maintenance describe where the work is done and how deep the repairs go: on the ship by the crew (operational), at intermediate facilities for more complex tasks (intermediate), and at depots or dedicated repair facilities for major overhauls (depot). Onboard maintenance handles routine tasks, inspections, and minor repairs needed to keep equipment running day to day. When a fault is beyond routine fixes but not a full overhaul, it’s taken to an intermediate facility for more thorough diagnostics, repair, alignment, and testing. For the most extensive work—major overhauls, rebuilds, and substantial testing—depot maintenance is performed at specialized centers.

The option that lists all three levels—Depot, Operational, and Intermediate—best captures the standard maintenance framework. The other options use nonstandard or unrelated terms that don’t align with the established hierarchy.