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26 Matching questions

  1. What is Feedwater?
  2. When can priming and carryover occur?
  3. What does a bypass feeder do?
  4. What can an inadequate/improper boiler water treatment do?
  5. What is Scale?
  6. What can cause high surface tension? and what does it result in?
  7. What can cause boiler parts to overheat? and why?
  8. What is boiler water? and what is it's use?
  9. What is external boiler water treatment?
  10. What does a chemical feed system do?
  11. What can oxygen in feedwater lead to? and what can be implemented/changed for maximum effectiveness and economy?
  12. What is caustic embrittlement?
  13. What does a surge tank collect?
  14. How are TDS measured?
  15. What should boiler water ph typically be?
  16. What does a deaerator do?
  17. How is a bottom blowdown performed?
  18. What is Corrosion?
  19. What does an electronic hardness tester do?
  20. How is foaming caused?
  21. What is internal boiler water treatment?
  22. What must the boiler operator record?
  23. How is blowdown used? and why?
  24. What does a water softener do?
  25. Water in the boiler must be...
  26. What is alkalinity?
  1. a Impurities floating on the surface of the boiler water cause high surface tension, resulting in priming and carryover.
  2. b A deaerator heats feedwater to the temperature of saturated steam at the pressure within a pressure vessel.
  3. c Boiler water is the water in the boiler used to produce steam.
  4. d The total dissolved solids (TDS) present in boiler water are measured with a conductivity meter.
  5. e The boiler operator must record any conditions that may indicate water treatment-related problems.
  6. f Water used in the boiler must be treated for safety and efficiency.
  7. g Corrosion is rusting or pitting that weakens boiler metal by the thinning (removal) of the metal.
  8. h Lack of adequate boiler water treatment or improper boiler water treatment can drastically shorten the life of a boiler.
  9. i A water softener removes calcium and magnesium to reduce water hardness.
  10. j A surge tank collects condensate before sending it to the deaerator.
  11. k Internal boiler water treatment is treating water after it has entered the boiler.
  12. l A bypass feeder introduces water treatment chemicals in a loop on the discharge side of the feedwater pump.
  13. m An electronic hardness tester is commonly used to determine water hardness.
  14. n Feedwater is water that is treated for use in the boiler.
  15. o Oxygen in feedwater can lead to corrosion and pitting of the boiler metal. The correct amount of water treatment chemicals must be used for maximum effectiveness and economy.
  16. p Minerals present in water can cause a buildup of deposits that restrict water flow and cause overheating of boiler parts.
  17. q A bottom blowdown is performed in accordance with plant procedures and/or the water treatment program.
  18. r Priming and carryover can occur when boiler water is carried into the steam lines.
  19. s Boiler water pH typically should be between 10 and 11.5
  20. t Scale is the accumulation of minerals such as calcium and magnesium on boiler heating surfaces.
  21. u Blowdown is used as a part of a boiler water treatment program to remove some of the concentrated water and replace it with feedwater to lower the total concentration of dissolved solids.
  22. v Caustic embrittlement is the accumulation of high alkaline elements, which cause boiler metal corrosion at stress zones in the boiler.
  23. w Foaming is caused by the formation of steam bubbles trapped below a film on the boiler water surface.
  24. x A chemical feed system introduces feedwater treatment chemicals into a boiler at a predetermined and controlled rate.
  25. y Alkalinity is the property of a solution as determined by measuring its pH level.
  26. z External boiler water treatment is treating water before it enters the boiler.