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Boiler Steam Line Corrosion Inspection Quiz

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Boiler Steam Line Corrosion Inspection Quiz

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Questions and Answers

What should be inspected on the fire side to prevent refractory from falling?

Fan inlets

Membrane walls for cracks (correct)

Flame site glasses

Refraction walls

In NDT testing, why is cleanliness important?

It saves time during testing

It makes the area look better

It's a safety requirement

It ensures accurate test results (correct)

Which NDT test involves spraying fluorescent liquid with iron filings onto a sample?

Radiographic or Xray

Ultrasonic

Dye Penetrant Testing

Magnetic Particle Inspection (correct)

What does Radiographic or Xray testing use to display cracks?

Radiation Signup and view all the answers

How is thickness, density, and voids determined in Ultrasonic testing?

By sending ultrasonic signals Signup and view all the answers

When is Thermal Radiation testing typically done in a boiler?

While the boiler is running Signup and view all the answers

What is a primary concern when inspecting the boiler tubes on the fireside?

Identifying potential leak points for further inspection Signup and view all the answers

Why are risers more prone to scale buildup compared to downcomers?

Risers have higher water concentrations, leading to increased scaling Signup and view all the answers

What is a potential consequence of extreme scale buildup in boiler tubes?

Dislodged scale pieces can plug and obstruct other tubes Signup and view all the answers

Why is it important to inspect the blowdown lines and piping in the mud drum?

To check for any potential leaks or damage in the blowdown system Signup and view all the answers

What is a common challenge when inspecting the economizer and superheater sections?

Limited accessibility due to the tube configurations Signup and view all the answers

What is the purpose of sending scale samples to a water treatment specialist?

To identify potential sources of contaminants in the boiler water Signup and view all the answers