The second engineer reports to you as the...

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Question 1 of 2066636ef128f7522a1c521903

The second engineer reports to you as the Chief Engineer that there is an increased use of oxygen scavenging chemicals in a boiler. Which of the following could be a possible cause?

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Question 1 of 20

66636ef128f7522a1c521903

The second engineer reports to you as the Chief Engineer that there is an increased use of oxygen scavenging chemicals in a boiler. Which of the following could be a possible cause?

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🔍 Key Concepts

• Role of a DC (deaerating) heater in removing dissolved oxygen from feedwater • Purpose of oxygen scavenging chemicals in boiler water treatment • Relationship between feedwater quality and chemical consumption rates

💭 Think About

• Which component in the system is primarily responsible for physically removing dissolved oxygen before chemicals are added? • If you suddenly need more oxygen scavenger, what does that suggest about the amount of oxygen entering with the feedwater? • Look at each choice: which ones would mainly affect combustion/level/steam load, and which one would directly influence dissolved oxygen in the feedwater?

✅ Before You Answer

• Identify which option is directly tied to feedwater deaeration, not combustion air or steam load • Ask: "If this condition changed, would it reasonably increase dissolved oxygen entering the boiler?" • Eliminate any options that only affect firing rate, level control, or demand, but not feedwater gas content

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Question 1 of 2066636ef128f7522a1c521903

The second engineer reports to you as the Chief Engineer that there is an increased use of oxygen scavenging chemicals in a boiler. Which of the following could be a possible cause?

Back

Question 1 of 20

66636ef128f7522a1c521903

The second engineer reports to you as the Chief Engineer that there is an increased use of oxygen scavenging chemicals in a boiler. Which of the following could be a possible cause?

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