In the water level electrode assembly, shown...

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Question 1 of 2066636eef28f7522a1c5204db

In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the water reaches the position indicated by arrow '____'. Illustration MO-0047

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Question 1 of 20

66636eef28f7522a1c5204db

In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the water reaches the position indicated by arrow '____'. Illustration MO-0047

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🔍 Key Concepts

• Conductive water level electrodes and how immersion/completion of the circuit controls feed pumps and alarms • Typical ordering of boiler level functions from highest to lowest: high-level alarm / pump stop / pump start / low-water cutoff • The length of each electrode in the illustration and which one corresponds to the safe operating low level (not the emergency cutoff)

💭 Think About

• Looking at the different electrode lengths, which one will first become uncovered as the water level FALLS into the normal low range where you want the pump to start? • Which electrode is still above the absolute minimum safe water level (burner trip) but below the normal operating level where the pump stops? • If the lowest electrode is usually reserved for a burner safety shutdown, which arrow in the figure points to the NEXT higher electrode that would logically be used to restart the feed pump?

✅ Before You Answer

• Identify which arrow marks the lowest, deepest electrode (this is usually the low-low water cutoff, not the pump restart). • Identify which arrow marks the next higher electrode above the lowest one; ask yourself if this corresponds to the desired pump restart level. • Confirm which electrode is around the normal low water level, between normal operating range and emergency cutoff, and match that to the answer choices.

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Question 1 of 2066636eef28f7522a1c5204db

In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the water reaches the position indicated by arrow '____'. Illustration MO-0047

Back

Question 1 of 20

66636eef28f7522a1c5204db

In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the water reaches the position indicated by arrow '____'. Illustration MO-0047

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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