1
visibility
  • A

    Penetrant apply, development, inspection, surface preparation

  • B

    Surface preparation, penetrant apply, development, inspection

  • C

    Penetrant apply, development, surface preparation, inspection

  • D

    Development, surface preparation, penetrant apply, inspection

Answer: Surface preparation, penetrant apply, development, inspection
Explanation: Firstly surface is cleaned. Penetrant is applied and surface flow is made visible. Finally, surface is inspected.