High salinity can be reduced in a steaming...

Question 1 / 270705eccefa0bacbc34ba4d46f9a

Question 1 of 270705eccefa0bacbc34ba4d46f9a

High salinity can be reduced in a steaming boiler by adding caustic soda, phosphate, and then __________.

Question 1 of 27070

High salinity can be reduced in a steaming boiler by adding caustic soda, phosphate, and then __________.

🔍 Key Concepts

• Boiler water salinity control methods • Difference between chemical treatment vs mechanical removal of dissolved solids • Role of continuous vs intermittent blowdown in boiler operation

💭 Think About

• Which option directly removes dissolved salts from the boiler water, rather than just changing their chemical form or controlling other impurities? • Which treatments listed are mainly used for controlling oxygen corrosion or precipitating hardness, and do they actually lower salinity? • Think about what a chief engineer would adjust on the boiler if the conductivity (TDS) reading became too high.

✅ Before You Answer

• Identify which choice is a mechanical process instead of a chemical additive or firing adjustment. • Ask: does this option specifically help reduce total dissolved solids (TDS)/salinity? • Eliminate any answers that mainly address oxygen control or hardness precipitation rather than direct salt removal.

Question 1 of 27070

High salinity can be reduced in a steaming boiler by adding caustic soda, phosphate, and then __________.

using the continuous blow down

steaming at a low firing rate for 24 hours

adding hydrazine to control dissolved oxygen

adding calcium carbonate to precipitate solids

Question 1 / 270705eccefa0bacbc34ba4d46f9a

Question 1 of 270705eccefa0bacbc34ba4d46f9a

High salinity can be reduced in a steaming boiler by adding caustic soda, phosphate, and then __________.

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Question 1 of 27070

High salinity can be reduced in a steaming boiler by adding caustic soda, phosphate, and then __________.