🔍 Key Concepts

• MODU (Mobile Offshore Drilling Unit) safety signaling requirements • Difference between an alarm bell (where sound comes from) and an alarm actuator (where you trigger it) • Where personnel are most likely to need to recognize the specific meaning of an alarm signal

💭 Think About

• Ask yourself: Where is it most critical for a crewmember to be reminded of what a particular alarm signal means at the exact moment they may need to use or respond to it? • Consider which location stays relevant even if layouts change or people are not near exits or muster lists. • Think about the functional difference between hearing an alarm versus initiating or controlling it—where would the label prevent a wrong action?

✅ Before You Answer

• Verify what an actuator is on a MODU (e.g., a pull station or push button that starts the alarm). • Check which option refers to the place where the alarm is activated, not just where it is heard or where people gather. • Make sure the chosen location would help prevent confusion in an emergency, right when someone goes to operate the alarm system.