🔍 Key Concepts
• Compare the thermometer/temperature-related symbol with any symbols that look like general detectors or alarms.
• Remember that a heat detector is different from a smoke detector or sprinkler head – look for something that clearly suggests temperature, not water spray or smoke.
• Focus on the lower part (Part 2) of the illustration where individual detector types are grouped together with other fire-detection symbols.
💭 Think About
• Which numbered symbol most clearly represents temperature or heating rather than water, gas, or general alarms?
• Looking at symbols 18, 31, 49, and 63 specifically, ask yourself: which one would you instantly recognize as having to do with heat or temperature even if you didn’t know the numbering?
• Do any of the choices resemble directional signs, clothing, or hooks rather than detectors? Eliminate those first.
✅ Before You Answer
• Verify that the symbol you choose has a clear temperature/thermometer clue, not a nozzle, arrow, or sign shape.
• Double‑check that the symbol is not a sprinkler head (water spray) or a general alarm/indicator symbol.
• Confirm that the chosen symbol appears in the context of fire detection devices on the plan, not in the section with signs, arrows, or safety equipment like hooks or suits.