Full access allows:
- Solve all tests online without limits;
- Remove all advertisements on website;
- Adding questions to favorite list;
- Save learning progress;
- Save results of practice exams;
- Watching all wrong answered questions.
- Homepage »
- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q538 - Steam Plants II
35. Boiler water hardness is increased by __________.
Boiler water hardness increases due to scale-forming salts entering with the feedwater. These salts, primarily calcium and magnesium compounds, precipitate and form scale on heating surfaces, reducing efficiency. Dissolved gases cause corrosion, DC heater operation affects deaeration, and alkalinity influences pH but do not directly increase hardness.
Comments (0)
There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it
Only signed in users can write comments
Signin