🔍 Key Concepts

• Look closely at the four numbered symbols 13, 16, 15, and 17 and decide which ones show a piece of equipment (nozzle, monitor, valve, connection) versus a space or area being protected. • On IMO Fire Control Plans, symbols with the letter F usually relate to foam systems; some mark equipment (like monitors or inlets), others mark the boundary/space protected by foam. • Compare how the plan shows a space protected by other agents (for example CO₂ or sprinkler coverage elsewhere on the sheet) and look for a similar style of “area/space” symbol but labeled for foam.

💭 Think About

• Which of the numbers 13, 16, 15, or 17 looks like it represents a zone or coverage area, rather than a single appliance such as a nozzle, hose, or monitor? • Can you find on the sheet how a space protected by CO₂ or sprinkler is drawn, and then match that style to the foam-related symbols that use the letter F? • Among the four options, which symbol would most logically be used to shade or mark an entire compartment on a plan, not just one point on the bulkhead or deck?

✅ Before You Answer

• Identify which choice shows a valve symbol (these do not represent a whole space). • Identify which choices clearly show a monitor/nozzle or connection (these are pieces of equipment, not spaces). • Confirm that the symbol you select could reasonably be drawn across or within a compartment outline on a plan to indicate “this entire space is foam-protected,” rather than placed at a single spot.