🔍 Key Concepts

• Boiler high-water casualty procedures and why high water is dangerous • Purpose and proper use of the water gage glass and blowdown valves • Which boiler components (superheater, economizer) are normally drained and under what conditions

💭 Think About

• After a high water condition is corrected, what is the safest way to CONFIRM the actual water level in the boiler? • Which of the listed actions would be routine and cautious, and which would be extreme or potentially harmful to the boiler? • Would you immediately return the boiler to service after a casualty, or is there a verification step first?

✅ Before You Answer

• Verify how you positively check the accuracy of the water level indication after any abnormal level condition • Consider whether draining the superheater or economizer is standard procedure for a high water casualty or reserved for more serious damage/contamination situations • Ask whether it is good practice to immediately put the boiler on the line after any casualty without an additional safety check