Referring to the device shown in the...

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Question 1 of 205eccefa5bacbc34ba4d487e7

Referring to the device shown in the illustration, the coiled sensing lines "A" and "B", are used simultaneously when the pilot is used __________. See illustration GS-0052.

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Question 1 of 20

5eccefa5bacbc34ba4d487e7

Referring to the device shown in the illustration, the coiled sensing lines "A" and "B", are used simultaneously when the pilot is used __________. See illustration GS-0052.

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🔍 Key Concepts

• Coiled sensing lines A and B both connect this pilot to the process – think about what two separate pressure/level signals might be needed for • Consider how differential pressure is used to measure liquid level when tank vapor space pressure is changing • Notice the vent valves and the spring/diaphragm arrangement – what kind of control (level vs. flow vs. ratio) typically uses this style of pilot?

💭 Think About

• If one line senses the liquid at the bottom of a tank, what do you think the second line is intended to sense, and why would that be important? • In which situation would a single sensing line give you a false level reading – when the tank is vented to atmosphere, or when the tank vapor pressure is varying? • Which of the choices clearly involves two pressures that must be compared, rather than just one pressure or one flow signal?

✅ Before You Answer

• Identify which answer choice describes a condition with changing vapor (gas) pressure above the liquid – that will affect level indication • Eliminate any options that mainly deal with flow control or mathematical signal conditioning (like square‑root extraction), since this pilot is a level controller • Make sure the choice you select actually requires both sensing lines A and B to be active at the same time, not just one line to atmosphere

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Question 1 of 205eccefa5bacbc34ba4d487e7

Referring to the device shown in the illustration, the coiled sensing lines "A" and "B", are used simultaneously when the pilot is used __________. See illustration GS-0052.

Back

Question 1 of 20

5eccefa5bacbc34ba4d487e7

Referring to the device shown in the illustration, the coiled sensing lines "A" and "B", are used simultaneously when the pilot is used __________. See illustration GS-0052.

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