On an automatically fired auxiliary boiler,...

Question 1 / 205eccefa3bacbc34ba4d47c4e

Question 1 of 205eccefa3bacbc34ba4d47c4e

On an automatically fired auxiliary boiler, the steam pressure limit switch is wired into the burner electric circuit to __________.

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Question 1 of 20

5eccefa3bacbc34ba4d47c4e

On an automatically fired auxiliary boiler, the steam pressure limit switch is wired into the burner electric circuit to __________.

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🔍 Key Concepts

• Automatic boiler safety interlocks in the burner circuit • Difference between pressure limit switch, low-water cutoff, and alarms • Purpose of the burner control circuit in maintaining safe steam pressure

💭 Think About

• Ask what must happen to the burner when the boiler reaches its maximum safe steam pressure—should it keep firing or change state? • Consider whether a pressure limit switch is meant to detect flame, water level, or system pressure. • Think about which device specifically protects against low water level versus high steam pressure.

✅ Before You Answer

• Identify the primary job of a steam pressure limit switch on an automatic boiler (control at high pressure, not low water or flame presence). • Separate in your mind the function of a low-water cutoff device from a pressure limit switch. • Verify which choice describes an action that directly controls burner operation when cutoff pressure (maximum set pressure) is reached.

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Question 1 of 20

On an automatically fired auxiliary boiler, the steam pressure limit switch is wired into the burner electric circuit to __________.

sound an alarm when the burner is shut off

energized the flame scanner circuit when high boiler pressure is reached

shut off the burner when the cutoff pressure is reached

prevent burner operation in the event of low boiler water level

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Question 1 / 205eccefa3bacbc34ba4d47c4e

Question 1 of 205eccefa3bacbc34ba4d47c4e

On an automatically fired auxiliary boiler, the steam pressure limit switch is wired into the burner electric circuit to __________.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47c4e

On an automatically fired auxiliary boiler, the steam pressure limit switch is wired into the burner electric circuit to __________.

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