If the flame of an automatically fired...

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Question 1 of 205eccefa3bacbc34ba4d47c7d

If the flame of an automatically fired auxiliary boiler tends to move away from the burner tip when the firing rate is changed from low to high, you should __________.

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Question 1 of 20

5eccefa3bacbc34ba4d47c7d

If the flame of an automatically fired auxiliary boiler tends to move away from the burner tip when the firing rate is changed from low to high, you should __________.

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🔍 Key Concepts

• combustion air-fuel ratio in automatically fired boilers • effect of damper opening and draft on flame shape and stability • relationship between firing rate changes (low to high) and flame ‘blow-off’ or lifting from the burner tip

💭 Think About

• What does it mean physically when a flame moves away or ‘lifts’ from the burner tip as air flow increases? Is this usually caused by too much air or too much fuel for that moment? • Which adjustment would directly control how fast the combustion air increases when you go from low to high fire? • Which options actually correct combustion conditions, and which only affect sensing or timing without changing the air-fuel balance at the moment of flame lift?

✅ Before You Answer

• Identify which choice changes air flow rate vs fuel flow rate during the transition from low to high fire • Eliminate any option that only changes flame detection (sensing) without correcting the underlying combustion condition • Consider which adjustment would prevent the flame from being blown off the burner tip when the firing rate quickly increases

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Question 1 of 205eccefa3bacbc34ba4d47c7d

If the flame of an automatically fired auxiliary boiler tends to move away from the burner tip when the firing rate is changed from low to high, you should __________.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47c7d

If the flame of an automatically fired auxiliary boiler tends to move away from the burner tip when the firing rate is changed from low to high, you should __________.

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

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed