Excess free oxygen in the boiler feedwater...

Question 1 / 270705eccef9cbacbc34ba4d457c2

Question 1 of 270705eccef9cbacbc34ba4d457c2

Excess free oxygen in the boiler feedwater can be the result of __________.

Question 1 of 27070

Excess free oxygen in the boiler feedwater can be the result of __________.

🔍 Key Concepts

• Role of a dearating (DC) heater in removing dissolved gases like oxygen from feedwater • Sources and effects of dissolved oxygen in boiler systems (corrosion, pitting) • Difference between problems in steam/air systems (glands, exhausters) vs water treatment/feed system issues

💭 Think About

• Which component in the choices normally has the specific job of removing gases like oxygen from the feedwater before it enters the boiler? • Which options deal mainly with steam sealing or air removal, and which one directly affects the conditioning of the feedwater itself? • If you were trying to prevent oxygen-caused corrosion in a boiler, which piece of equipment would you check first for proper operation?

✅ Before You Answer

• Identify which choice is directly part of the feedwater treatment / dearation process • Confirm which equipment is specifically designed to remove dissolved gases (including oxygen) from water • Eliminate options that primarily relate to steam seals or vapor conditions, not to water conditioning

Question 1 of 27070

Excess free oxygen in the boiler feedwater can be the result of __________.

steam leaks through the turbine glands

improper operation of the DC heater

vapor lock in the boiler feed pump

improper operation of the gland exhauster

Question 1 / 270705eccef9cbacbc34ba4d457c2

Question 1 of 270705eccef9cbacbc34ba4d457c2

Excess free oxygen in the boiler feedwater can be the result of __________.

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Question 1 of 27070

Excess free oxygen in the boiler feedwater can be the result of __________.