Chemicals are added to boiler water in order...

Chemicals are added to boiler water in order...

Question 1 of 270705eccefa0bacbc34ba4d46f9d

Chemicals are added to boiler water in order to __________.

Question 1 of 27070

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Q

Chemicals are added to boiler water in order to __________.

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🔍 Key Concepts

• Boiler water treatment and why it is needed in marine boilers • The effect of dissolved oxygen in boiler water on metal surfaces • The role of blowdown in controlling total dissolved solids (TDS)

💭 Think About

• Think about which problem is most directly treated by adding chemical scavengers (like sodium sulfite) to the water. • Consider which items on the list are normally controlled by OPERATING procedures (like blowdown) rather than by chemicals. • Ask yourself: which of these issues, if not controlled, would quickly damage boiler tubes through pitting and corrosion?

✅ Before You Answer

• Identify which option relates to oxygen pitting/corrosion of boiler metal surfaces. • Recall what blowdown actually removes from the boiler and how it affects TDS. • Check which items (like chlorides or TDS) are mainly reduced by physical removal of water (blowdown) rather than by chemical addition.