Question 141Steam Plants - 1st Asst/Chief
70% to passWhich of the listed refractory materials should be used for patching a burner front formed of plastic, castable, or tile?
AAir-setting mortar
BPlastic fireclay
CChrome castable insulation
DPlastic chrome insulation
AI Explanation
The correct answer is B) Plastic fireclay. Plastic fireclay is the appropriate refractory material for patching a burner front formed of plastic, castable, or tile. Plastic fireclay is a type of refractory material that can withstand high temperatures and is compatible with the materials typically used in burner fronts. The other options, such as air-setting mortar, chrome castable insulation, and plastic chrome insulation, may not be suitable for this specific application.
Related Questions
Q@q.QuestionNumber:If an analysis of boiler flue gas determines there is no excess air for combusti... Q@q.QuestionNumber:In a steam assist fuel oil atomizer, the steam pressure is higher than the oil p... Q@q.QuestionNumber:Excessive foaming in a steaming boiler can cause damage to the _______________. Q@q.QuestionNumber:When a turbine bearing shows signs of overheating, you should _______________. Q@q.QuestionNumber:If the temperature of the fuel oil entering an atomizer is too low, the burner w...
Ready to test your knowledge?
Take a Steam Plants - 1st Asst/Chief Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App