MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What is caustic embrittlement in a boiler?

Cracking of boiler metal caused by high concentrations of sodium hydroxide (caustic soda) at stressed areas Weakening of metal due to prolonged exposure to low pH water Surface erosion caused by high-velocity steam flow Tube thinning from excessive blowdown velocity

Correct Answer:

Cracking of boiler metal caused by high concentrations of sodium hydroxide (caustic soda) at stressed areas

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