How are redundant sensors or channels treated in CSOSS?

• A. Sequences include checks for redundancy, and operators may switch to alternate sources if primary fails, following preset procedures.
• B. Redundant sensors must always override primary, regardless of correctness.
• C. Redundant sensors are decommissioned.
• D. Redundancy is ignored to speed up decisions.

Answer: (A)

Redundancy is built in to CSOSS to keep critical systems operating even when a sensor or channel fails. Sequences are designed to include checks for alternate sources, so operators can switch to an alternate source if the primary one fails or its data can’t be trusted, and they do so according to predefined procedures. This approach maintains reliability and continuous awareness of the system state, which is essential for safe and effective ship operations.

Why this fits best: it captures the idea that redundancy is actively evaluated and used to maintain function, not simply ignored or overridden automatically. It also aligns with the practice of following preset procedures to ensure switches are done safely and correctly. The other options mischaracterize redundancy: it’s not about always overriding primary, not about decommissioning redundant sensors, and not about ignoring redundancy to speed decisions.