The tube sheets installed in a fire-tube...

Question 1 / 270705eccefa2bacbc34ba4d47bc6

Question 1 of 270705eccefa2bacbc34ba4d47bc6

The tube sheets installed in a fire-tube auxiliary boiler are normally connected by _________.

Question 1 of 27070

The tube sheets installed in a fire-tube auxiliary boiler are normally connected by _________.

🔍 Key Concepts

• Fire-tube auxiliary boiler construction – how the front and rear tube sheets are supported and kept at a fixed distance • Difference between fire-tubes, stay-tubes, and stays/girder stays • What a crown sheet is and which type of boiler it belongs to

💭 Think About

• Think about what physically spans between the two tube sheets in a fire-tube boiler and helps keep them aligned and supported under pressure • Which of the listed items would be found INSIDE the boiler shell connecting the two tube sheets, rather than on the outside or in a different boiler design? • Ask yourself: in a typical Scotch or auxiliary fire-tube boiler, what passes through both tube sheets from one end to the other?

✅ Before You Answer

• Verify which components actually run between the front and rear tube sheets in a fire-tube boiler • Eliminate any option that is mainly associated with watertube boilers or locomotive-type crown sheets • Confirm which item in the list serves both as gas passages and as structural support/stays between tube sheets

Question 1 of 27070

The tube sheets installed in a fire-tube auxiliary boiler are normally connected by _________.

girder stays

fire-tubes and stay-tubes

external boiler plating

separate crown sheets