Question 364Steam Plants - Assistant Engineer70% to pass
To minimize metal corrosion, boiler water is best kept _______________.
AI Explanation
The correct answer is B) alkaline.
Boiler water is best kept alkaline to minimize metal corrosion. Alkaline water, with a pH higher than 7, helps form a protective oxide layer on metal surfaces in the boiler, preventing corrosion. This is the recommended practice according to regulations and industry standards for boiler water treatment.
The other options are incorrect because: A) Acidic water would accelerate corrosion of metal boiler components. C) Slightly acidic water still provides insufficient protection against corrosion. D) Neutral water, with a pH of 7, does not offer the same level of protection as alkaline water.
Related Questions
#362 Which of the following statements concerning boiler steam drum surface blow piping is correct? #363 When installing new safety valve escape piping, precautions should include assuring that _______________.#365 A water-tube boiler can be laid up either wet or dry. If it is to be laid up wet, you should _______________.#366 When a boiler water test indicates a pH value of 6, you should _______________.#367 Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?