🔍 Key Concepts

• 46 CFR requirements for automatically fired boilers on inspected vessels • Purpose of automatic safety devices on low-pressure heating boilers • Difference between safety shutdown devices vs. normal control devices

💭 Think About

• Which option directly protects the boiler from the most dangerous basic condition: loss of water, loss of pressure control, wrong feed, or temperature control? • Ask yourself: for a LOW-pressure HEATING boiler, which control is absolutely critical to prevent serious damage if it fails? • Which of these devices would the Coast Guard most likely require to be AUTOMATICALLY triggered by an unsafe condition, rather than just regulating normal operation?

✅ Before You Answer

• Verify which choice is a safety shutdown (stops combustion) versus a normal regulating/control device. • Focus on the word "automatically fired low pressure heating boilers" in 46 CFR—what specific automatic protection is tied to water level? • Eliminate options that mainly control comfort/efficiency (pressure, temperature) instead of protecting the boiler from damage.