1. Which of the items listed below is NOT an advantage of the liquid penetrant test method? A. The method can find all types of discontinuities (answer) B. The method is simple in principle and relatively easy to understand. C. The method is essentially simple in application. D. There are few limitations on the size and shape of the article that can be treated by this method. 2. When using post-emulsification penetrants, difficulties incurred during the washing operation can be overcome by: A. Reapplying a coat of emulsifier B. Increasing the water pressure used during the washing operation C. Completely … Continue reading ASNT Questions and answers for PT, LPI level II (1).
1- Which of the following should be removed in order to obtain a good penetrant test? a. Varnish b. Oxides c. Plating d. All of the above (answer) 2 – Which method is used to primarily to inspect small localized areas? a. Method A b. Method B c. Method C (answer) d. Method D 3 – Large defects can be hidden under a painted surface because: a. The paint will fill in the cracks and change the fluorescence of the penetrant b. Paint is more elastic than metal and will not fracture (answer) c. The penetrant will adhere to the … Continue reading ASNT Questions and answers for PT, LPI level II (2).
The ASME V is the guideline to make an NDE procedure, how to evaluate the report or defect is defined by Construction as below for your quick reference: 1. ANSI/ASME B31.1 Power Piping The following relevant indications are unacceptable: 1.1. Any cracks or linear indications. 1.2. Rounded indications with dimensions greater than 3/16 inch (4.8mm). 1.3. Four or more rounded indications in a line separated by 1/16 inch(1.6 mm) or less edge to edge. 1.4. Ten or more rounded indications in any 6 square inches (3,870 mm²) of surface with the major dimension of this area not to exceed 6 inches (150 mm) with the area taken in the most … Continue reading NDE Magnetic Testing (MPI) Standard and Criteria
The ASME V is the guideline to make an NDE procedure, how to evaluate the report or defect is defined by Construction as below for your quick reference: ANSI / ASME B31.1 &ANSI / ASME B31.3 Indication > 1/16″(1.5mm) shall be considered as relevant 1. Linear Indication: Any crack or linear indication 2. Rounded Indications Indications with dimensions >3/16″(5.0mm) Four or more rounded indication in a line separated by 1/16″(1.5mm) or less edge to edge. 3. Ten or more rounded indication in any 6 in of surface with the major dimension of this area not to exceed 6 in. ASME … Continue reading NDE Penetrant testing (PT) Standards and Criteria
Magnetic particle users outside the aerospace industry have typically used ASTM E709 Standard Guide for Magnetic Particle Testing as their baseline standard for procedures. ASME, AWS, and API standards all use ASTM E709 as a reference to build their specific requirements. However, from an ASTM perspective, E709 is officially a “Guide,” which ASTM defines as, “a compendium of information or series of options that does not recommend a specific course of action. A guide increases the awareness of information and approaches in a given subject area.” This means it provides information and recommendations, but it does not actually include any hard requirements. … Continue reading Magnetic particle inspection standards ASTM E709, ASTM E1444 and ASTM E3024