10 Non-Destructive Testing Methods Study Guide & NDT Techniques Revision
Notes
Identify the 6 common NDT methods? - correct answer ✔✔Visual Inspection
Liquid Penetrant Testing
Magnetic Particle Inspection
Eddy Current Testing
Ultra-sonic Inspection,
Radiographic Inspection,
Can dye penetrate locate defects under the surface - correct answer ✔✔no only surface defects
Other than the above, what are three other disadvantages of a die penetrate NDT inspection? -
correct answer ✔✔1. Rough or porous metals interfere with the test
2. Part preparation required. (removal of finishes and sealing)
3. High degree of cleanliness
Can a mag particle test detect sub surfaces discontinuities? - correct answer ✔✔Yes
Is mag particle good on rough surfaces? - correct answer ✔✔Rough surfaces interfere with test
What material can you use a magnetic particle test on? - correct answer ✔✔Ferro-magnetic
materials only
What must be done after a MP NDT? - correct answer ✔✔part must be demagnetised
Does a rough surface interfere with Eddy current NDT test? - correct answer ✔✔yes
Notes
Identify the 6 common NDT methods? - correct answer ✔✔Visual Inspection
Liquid Penetrant Testing
Magnetic Particle Inspection
Eddy Current Testing
Ultra-sonic Inspection,
Radiographic Inspection,
Can dye penetrate locate defects under the surface - correct answer ✔✔no only surface defects
Other than the above, what are three other disadvantages of a die penetrate NDT inspection? -
correct answer ✔✔1. Rough or porous metals interfere with the test
2. Part preparation required. (removal of finishes and sealing)
3. High degree of cleanliness
Can a mag particle test detect sub surfaces discontinuities? - correct answer ✔✔Yes
Is mag particle good on rough surfaces? - correct answer ✔✔Rough surfaces interfere with test
What material can you use a magnetic particle test on? - correct answer ✔✔Ferro-magnetic
materials only
What must be done after a MP NDT? - correct answer ✔✔part must be demagnetised
Does a rough surface interfere with Eddy current NDT test? - correct answer ✔✔yes