In an automatically fired auxiliary boiler,...

Question 1 / 270705eccefa3bacbc34ba4d47c62

Question 1 of 270705eccefa3bacbc34ba4d47c62

In an automatically fired auxiliary boiler, restarting from the normal shutdown cycle in response to steam demand is initiated by a/an __________.

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Question 1 of 27070

In an automatically fired auxiliary boiler, restarting from the normal shutdown cycle in response to steam demand is initiated by a/an __________.

🔍 Key Concepts

• Automatic boiler combustion controls and how they respond to steam demand • Difference between pressure-based control and temperature-based control in steam systems • Role of water level controls versus steam demand controls

💭 Think About

• Ask yourself: when the system "wants more steam," what physical change in the boiler or system happens first and is easiest to measure? • Which of these devices is normally used as the primary signal to start and stop the burner in an automatically fired auxiliary boiler? • Which sensing device is more about safety/limit protection (like low water) rather than routine firing control?

✅ Before You Answer

• Identify which choices sense steam pressure, which sense temperature, and which sense water level • Recall that normal burner cycling (on/off or high/low) in a steam boiler is usually based on steam pressure, not water level or temperature • Separate in your mind the device that starts/stops firing from devices that only protect the boiler (like low-water cutouts)

Question 1 of 27070

In an automatically fired auxiliary boiler, restarting from the normal shutdown cycle in response to steam demand is initiated by a/an __________.

modulating pressuretrol, sensing both steam pressure and temperature

pyrostat measuring decreased steam temperature

pressuretrol measuring only the steam pressure

electrode sensing water level

Question 1 / 270705eccefa3bacbc34ba4d47c62

Question 1 of 270705eccefa3bacbc34ba4d47c62

In an automatically fired auxiliary boiler, restarting from the normal shutdown cycle in response to steam demand is initiated by a/an __________.

Back

Question 1 of 27070

In an automatically fired auxiliary boiler, restarting from the normal shutdown cycle in response to steam demand is initiated by a/an __________.