🔍 Key Concepts

• Steam quality vs. moisture content in boiler operations • Difference between a percentage by weight of steam and percentage by weight of water • Standard thermodynamic term used in marine steam plants

💭 Think About

• Ask yourself: when engineers talk about how "good" or "dry" the steam is, what single term do they usually use? • Think about which choice sounds like the established, textbook phrase in steam tables and boiler manuals, not something made up. • Which option would you expect to see labeled next to a percentage value in a diagram of a boiler drum showing steam and water mix?

✅ Before You Answer

• Identify which option is the standard engineering term for the dryness of steam. • Eliminate any option that mainly describes water/moisture instead of the steam itself. • Check which choice you could most naturally pair with a number, e.g., "The ______ is 90%" in steam system discussions.