Two-element feed water regulators operate by...

Two-element feed water regulators operate by...

Question 1 of 270705eccefa0bacbc34ba4d46e51

Two-element feed water regulators operate by sensing __________.

Question 1 of 27070

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Q

Two-element feed water regulators operate by sensing __________.

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🔍 Key Concepts

• Two-element vs. single-element feedwater control in boiler operations • What variables a feedwater regulator must sense to keep drum water level steady when steam demand changes • Difference between sensing flow vs. pressure for control purposes

💭 Think About

• When steam demand suddenly increases, what changes first: drum pressure, drum level, or steam/feedwater flow? • For a two-element system, one element is always drum water level. What should the second element be to quickly correct level when load changes? • Which sensed variable (flow or pressure) best represents the actual change in boiler load in real time?

✅ Before You Answer

• Confirm that drum water level is one of the controlled/monitored elements in this system • Identify which variable most directly indicates boiler load change: steam flow, feedwater flow, or steam pressure • Eliminate options that do not include drum/boiler water level, since that is essential to feedwater regulation