🔍 Key Concepts

• OSV (Offshore Supply Vessel) emergency signals as required by regulations and company procedures • The standard general alarm/fire alarm pattern used on most SOLAS and U.S. vessels • Difference between fire emergency vs abandon ship vs man overboard signals

💭 Think About

• Which choice looks like a clear, recognizable fire alarm pattern that can be heard and immediately understood everywhere on board? • Think about how the ship would alert people inside and outside the vessel at the same time—would it use only bells, only PA, or a combination? • Which of these patterns sounds like it could be easily confused with other drills or announcements, and which sounds distinct and continuous for a fire?

✅ Before You Answer

• Verify which options use both the whistle and the general alarm together, not just one system • Check which option specifies “continuous” signaling for a minimum time, not short or intermittent patterns • Eliminate any option that sounds more like a testing pattern or a normal PA announcement rather than an emergency signal