Modern day boiler automation allows...

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Question 1 of 205eccefa0bacbc34ba4d46ec6

Modern day boiler automation allows bypassing the "flame safeguard" system to permit a burner to have a "trial for ignition" period during burner light-off. This period may not exceed ______.

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5eccefa0bacbc34ba4d46ec6

Modern day boiler automation allows bypassing the "flame safeguard" system to permit a burner to have a "trial for ignition" period during burner light-off. This period may not exceed ______.

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🔍 Key Concepts

• Boiler flame safeguard purpose and why trial-for-ignition time is tightly limited • Risk of fuel accumulation and furnace explosion during burner light‑off • Typical time scale (seconds, not minutes) allowed by marine boiler safety standards for establishing stable flame

💭 Think About

• Think about how quickly a burner should prove a stable flame before it becomes unsafe to keep feeding fuel without confirmed ignition. • Which of these times would let unburned fuel accumulate to a dangerous level in the furnace if ignition failed? • For automatic systems on a ship, is the safe window for proving flame usually very short, moderately long, or fairly long?

✅ Before You Answer

• Recall that trial for ignition occurs with fuel admission but before confirmed flame detection—this must be very short for safety. • Eliminate any option that seems long enough for a significant build‑up of unburned fuel in the furnace. • Consider what interval marine boiler automatic safety codes typically call a ‘maximum’ trial‑for‑ignition time (single‑digit seconds vs. tens of seconds).

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Question 1 of 205eccefa0bacbc34ba4d46ec6

Modern day boiler automation allows bypassing the "flame safeguard" system to permit a burner to have a "trial for ignition" period during burner light-off. This period may not exceed ______.

Back

Question 1 of 20

5eccefa0bacbc34ba4d46ec6

Modern day boiler automation allows bypassing the "flame safeguard" system to permit a burner to have a "trial for ignition" period during burner light-off. This period may not exceed ______.

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?

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