Question 237Steam Plants - 1st Asst/Chief

70% to pass

The second engineer reports to you as the Chief Engineer that there is an increased use of oxygen scavenging chemicals in a boiler. Which of the following could be a possible cause?

ABoiler forced draft fan speed is too fast.
BWater level in boiler is being maintained at too high a level.
CBoiler steam demand is less than normal.
DImproperly functioning DC heater.
AI Explanation

The correct answer is D) Improperly functioning DC heater. The increased use of oxygen scavenging chemicals in a boiler can be caused by an improperly functioning deaerating (DC) heater. The DC heater is responsible for removing dissolved oxygen from the boiler feedwater, and if it is not functioning correctly, it can lead to higher oxygen levels in the boiler, requiring increased use of oxygen scavenging chemicals to maintain the proper chemical balance. The other options are incorrect because they do not directly relate to the increased need for oxygen scavenging chemicals. Boiler forced draft fan speed, water level, and steam demand are not factors that would typically lead to higher oxygen levels in the boiler system.

Related Questions
Q@q.QuestionNumber:According to the illustration, what part number identifies the "igniter"? Illust... Q@q.QuestionNumber:In an air register assembly, the majority of air passes through the ____________... Q@q.QuestionNumber:According to Coast Guard Regulations Q@q.QuestionNumber:A photoelectric cell installed in an automatically fired auxiliary boiler burner... Q@q.QuestionNumber:Which of the following actions should be taken FIRST when water is found in the ...

Ready to test your knowledge?

Take a Steam Plants - 1st Asst/Chief Practice Exam
Official Resources
46 CFR Machinery & Electrical 46 CFR Engineering USCG National Maritime Center
← Previous All Questions Next →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience.

Get the App