🔍 Key Concepts

• Boiler casualty procedures when a tube failure occurs • Why maintaining correct water level is critical for boiler safety • The relationship between firing rate and heat input when water level is already dropping

💭 Think About

• If water level is falling because of a tube failure, what happens to the rate of water loss if you increase feed pressure or add more pumps? • What is the safest immediate action regarding the fires when you suspect internal damage or leakage in the boiler pressure parts? • Is it better to focus on keeping the boiler in service, or on preventing further damage and a possible overheat/rupture when metal surfaces may be exposed?

✅ Before You Answer

• Verify which options increase stress on a damaged boiler (more pressure, more heat, more flow) versus which option reduces heat input and protects the boiler. • Check which choice focuses first on securing the boiler and preventing further damage, rather than trying to keep steam production up. • Confirm that any action you choose aligns with standard boiler emergency practice: in a suspected tube failure with falling level, the priority is safety and damage limitation, not maintaining output.