Podcast
Questions and Answers
What is the primary concern for Power Engineers regarding dissolved gases in water?
What is the primary concern for Power Engineers regarding dissolved gases in water?
- Acidic corrosion of the condensate return lines
- Pitting and corrosion of the boiler metal (correct)
- Formation of carbonic acid in the condensate lines
- Rusting of the boiler metal
What is the purpose of using deaerators in controlling dissolved oxygen?
What is the purpose of using deaerators in controlling dissolved oxygen?
- To lower the dissolved oxygen level (correct)
- To inhibit the formation of carbonic acid
- To reduce the pH level of the water
- To increase the solubility of oxygen in water
What effect does dissolved carbon dioxide have on the pH level in a boiler?
What effect does dissolved carbon dioxide have on the pH level in a boiler?
- It has no effect on the pH level
- It causes neutralization of the pH level
- It raises the pH level
- It lowers the pH level (correct)
What is the relationship between pH value and acidity?
What is the relationship between pH value and acidity?
How does high pH boiler water affect ferrous boiler metal?
How does high pH boiler water affect ferrous boiler metal?
What is the purpose of adding sodium hydroxide (caustic soda) to boiler water?
What is the purpose of adding sodium hydroxide (caustic soda) to boiler water?
Why is oxygen a concern in boiler water?
Why is oxygen a concern in boiler water?
What are the impurities or conditions most often identified as important water quality measures in a boiler system?
What are the impurities or conditions most often identified as important water quality measures in a boiler system?
What can result from impurities in a boiler system?
What can result from impurities in a boiler system?
What is the typical problem that can result from carryover of impurities downstream from the boiler?
What is the typical problem that can result from carryover of impurities downstream from the boiler?
What will scale formation from salts do inside a boiler?
What will scale formation from salts do inside a boiler?
Where are the typical areas of corrosion in a boiler due to impurities?
Where are the typical areas of corrosion in a boiler due to impurities?
What will suspended solids do if left untreated in a boiler system?
What will suspended solids do if left untreated in a boiler system?
What is the general relationship between operating pressure and feedwater purity in a boiler system?
What is the general relationship between operating pressure and feedwater purity in a boiler system?
Where can sludge from flowing water deposit within a boiler system?
Where can sludge from flowing water deposit within a boiler system?
What are the two main categories of methods for treating boiler water?
What are the two main categories of methods for treating boiler water?
What are examples of suspended solids in the boiler water?
What are examples of suspended solids in the boiler water?
Which method is commonly used to reduce the levels of suspended solids in boiler water?
Which method is commonly used to reduce the levels of suspended solids in boiler water?
What is the most common dissolved solids of interest in boiler water?
What is the most common dissolved solids of interest in boiler water?
What is the main problem caused by hardness in boiler water?
What is the main problem caused by hardness in boiler water?
How can colloidal silica be reduced in boiler water?
How can colloidal silica be reduced in boiler water?
How can sludge be controlled in a boiler?
How can sludge be controlled in a boiler?
What can sludge and scale buildup lead to in a boiler?
What can sludge and scale buildup lead to in a boiler?
