When performing a periodic gauge glass blow...

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Question 1 of 2066636ef128f7522a1c52177b

When performing a periodic gauge glass blow down to insure that the glass is free and operating correctly, what action is performed first?

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Question 1 of 20

66636ef128f7522a1c52177b

When performing a periodic gauge glass blow down to insure that the glass is free and operating correctly, what action is performed first?

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🔍 Key Concepts

• Gauge glass blow down purpose – to prove the gauge passages to the boiler are clear and the glass is accurately showing water level • Difference between the top steam connection and the bottom water connection on a boiler gauge glass • Normal sequence of isolating and draining a gauge glass to test both top and bottom connections

💭 Think About

• Ask yourself: When you first start a blow down, do you want to verify the steam (top) side or the water (bottom) side of the gauge glass first, and why? • Think through what happens inside the glass and connections when you close the top valve versus when you close the bottom valve, then open the drain. • Which initial step makes it safest and easiest to confirm that water is freely entering and leaving the gauge glass from the boiler?

✅ Before You Answer

• Identify which valve (top or bottom) controls the water side connection to the boiler and which controls the steam side. • Make sure you understand that the drain valve must provide a clear flow path to prove that connection is open, not blocked. • Verify which end (top or bottom) you are actually clearing when only one shutoff valve is closed and the drain valve is opened.

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Question 1 of 2066636ef128f7522a1c52177b

When performing a periodic gauge glass blow down to insure that the glass is free and operating correctly, what action is performed first?

Back

Question 1 of 20

66636ef128f7522a1c52177b

When performing a periodic gauge glass blow down to insure that the glass is free and operating correctly, what action is performed first?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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