🔍 Key Concepts

• Chlorides in boiler water and what they usually come from • Difference between alkalinity, phosphates, and chlorides in water treatment • Effects of sea water leakage/contamination into a boiler system

💭 Think About

• Ask yourself: In a marine boiler system, what common source introduces chlorides into the water? • Which chemical measurement is typically used to detect or monitor sea water contamination in boiler water? • Do alkalinity and phosphates usually come from intentional water treatment chemicals or from outside contamination?

✅ Before You Answer

• Verify which choice is directly related to salt content from sea water rather than to treatment chemicals • Check which substances (alkalinity, methyl orange, phosphates, chlorides) are added on purpose vs. those that enter through leaks or contamination • Confirm that chloride tests are standard practice for monitoring sea water leakage into boilers