If the steam flow input device to a...

Question 1 / 270705eccefa0bacbc34ba4d46e5d

Question 1 of 270705eccefa0bacbc34ba4d46e5d

If the steam flow input device to a two-element feed water regulator valve fails, the regulator operates as a __________.

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Question 1 of 27070

If the steam flow input device to a two-element feed water regulator valve fails, the regulator operates as a __________.

🔍 Key Concepts

• Two-element feed water regulator – what are its two separate inputs? • How a single-element feed water regulator senses and controls drum level • What happens to an automatic control system when one of its sensing signals is lost or fails safe

💭 Think About

• Think about which signal the two-element regulator still has if the steam flow input device fails. • Ask yourself: with only the remaining signal available, which type of control system does this most closely behave like? • Consider whether the failure would automatically turn the system into full manual control, or simply reduce its level of automatic sophistication.

✅ Before You Answer

• Identify clearly what the two elements are in a two-element feed water regulator (what two process variables are used). • Decide which of those two signals the regulator can still use after the steam flow input device fails. • Verify which choice best describes a controller that now works from only drum level feedback instead of both level and flow.

Question 1 of 27070

If the steam flow input device to a two-element feed water regulator valve fails, the regulator operates as a __________.

constant pump pressure regulator

remote manual control regulator

single-element feed water regulator

local manual control

Question 1 / 270705eccefa0bacbc34ba4d46e5d

Question 1 of 270705eccefa0bacbc34ba4d46e5d

If the steam flow input device to a two-element feed water regulator valve fails, the regulator operates as a __________.

Back

Question 1 of 27070

If the steam flow input device to a two-element feed water regulator valve fails, the regulator operates as a __________.