🔍 Key Concepts

• MODU emergency signals and how they differ from normal shipboard alarms • The purpose of manning emergency stations versus abandoning the MODU • SOLAS/USCG requirements for general alarm signals on mobile offshore drilling units (MODUs)

💭 Think About

• Ask yourself: which signal pattern would clearly alert all personnel to go to their assigned emergency duties, but is still distinct from an abandon-unit or other alarm? • Consider what kind of alarm pattern is most likely to be standardized and easy to recognize in noisy offshore environments. • Think: would a voice announcement alone be reliable in high-noise, emergency conditions on a MODU?

✅ Before You Answer

• Verify which option describes a distinct, recognizable pattern specifically associated with emergency stations, not abandon unit. • Check that the signal pattern is simple and repeatable even if power or communications are degraded. • Confirm that MODU requirements follow patterns similar to SOLAS/USCG general alarm conventions, adapted for offshore units.