🔍 Key Concepts

• IMO Fire Control Plan symbols for manual call points vs automatic detectors vs bells/phones • Difference between a manual push button alarm and an audible alarm bell on diagrams • How telephones and detectors are normally drawn on fire control plans

💭 Think About

• Look closely at each numbered symbol in the choices and ask which one shows something you would press with your hand rather than something that rings or detects automatically. • Compare the symbols that look like a bell or siren, a detector head on the ceiling, and a telephone handset—which remaining symbol best represents a manual alarm station? • On real ships, where are manual fire alarm push buttons located and how are they marked in red graphics? Does any one symbol match that style?

✅ Before You Answer

• Confirm which symbol is clearly a bell or audible alarm device and eliminate it. • Identify the symbol that obviously represents a telephone handset and eliminate that choice. • From the remaining symbols, pick the one that shows a boxed device intended to be operated manually (pushed) rather than automatically sensing fire.