In the system illustrated the valves at...

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Question 1 of 2066636ef128f7522a1c521a06

In the system illustrated the valves at point "A" are __________. Illustration SG-0005

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Question 1 of 20

66636ef128f7522a1c521a06

In the system illustrated the valves at point "A" are __________. Illustration SG-0005

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🔍 Key Concepts

• Valve symbol shapes in piping diagrams (difference between globe, gate, check, and special-purpose valves)** • Typical valve arrangements for soot blower steam supply lines from a boiler • How non‑return (check) and shutoff (stop) functions are often paired in steam systems

💭 Think About

• Look closely at point "A" and compare the valve symbols to others on the same diagram – do they match the symbols used for main line shutoff valves or for check/non‑return valves? • Think about what you want the valves on a soot blower steam line to do: should they only shut flow off, or also prevent backflow toward the boiler? • Which answer choice names two different functions that would reasonably be installed in series on a branch line from a high‑pressure boiler drum?

✅ Before You Answer

• Verify whether the first valve symbol at "A" has the appearance of a check valve (non‑return) or a plain stop valve. • Confirm if the second valve symbol at "A" looks like a standard stop (isolation) valve used elsewhere in the system. • Eliminate any answer choices that describe valves normally used only for measurement/drain service rather than as the primary control valves on a soot blower steam supply.

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Question 1 of 2066636ef128f7522a1c521a06

In the system illustrated the valves at point "A" are __________. Illustration SG-0005

Back

Question 1 of 20

66636ef128f7522a1c521a06

In the system illustrated the valves at point "A" are __________. Illustration SG-0005

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