Non-Destructive Testing (NDT): Surface and Internal Defects

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Questions and Answers

What type of emulsifier is used in Method B?

  • Solvent-based
  • Powder-based
  • Water-based
  • Oil-based (correct)

What is the maximum water pressure used for rinsing after emulsifier application in Method B and D?

  • 20 PSI
  • 50 PSI
  • 30 PSI
  • 40 PSI (correct)

What is the primary method of penetrant removal in Method C?

  • Rinsing with water
  • Hand wiping with a solvent-dampened rag (correct)
  • Using a dry powder developer
  • Applying an emulsifier

What type of inspection is Method C often applied for?

<p>In-situ inspection of pipe welds (C)</p> Signup and view all the answers

What is the characteristic of the sensitivity level 1 in non-destructive testing?

<p>Ultralow sensitivity (B)</p> Signup and view all the answers

What is the classification of Form a developer in non-destructive testing?

<p>Dry powder (B)</p> Signup and view all the answers

What is the purpose of an emulsifier in the post-emulsifiable method?

<p>To remove the penetrant (B)</p> Signup and view all the answers

What is the characteristic of Method C that makes it amendable to portability?

<p>It is a solvent removable method (C)</p> Signup and view all the answers

What is the classification of Class (1) solvent remover?

<p>Halogenated solvent remover (B)</p> Signup and view all the answers

What is the common application of Method B and Method D?

<p>Removal of penetrant using emulsifiers (C)</p> Signup and view all the answers

Flashcards

Method B emulsifier type

Oil-based emulsifier is used in Method B for penetrant removal.

Maximum rinsing pressure (Method B/D)

40 PSI is the maximum water pressure for rinsing after emulsifier application in Methods B and D.

Method C penetrant removal

Hand wiping with a solvent-dampened rag is the main penetrant removal method in Method C.

Method C inspection

Method C is often used for in-situ inspections of pipe welds.

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Sensitivity Level 1 (NDT)

Ultralow sensitivity characterizes sensitivity level 1 in non-destructive testing (NDT).

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Form a developer (NDT)

Dry powder is the classification of Form A developer in non-destructive testing.

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Emulsifier purpose (post-emulsion)

Emulsifiers in post-emulsifiable methods remove the penetrant.

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Portability in Method C

It is a solvent-removable method, making Method C amendable to portability.

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Class 1 solvent remover type

Halogenated solvent removers are classified as Class 1 solvent removers.

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Common application (Method B/D)

Method B and Method D are commonly used for penetrant removal using emulsifiers.

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