Non-Destructive Examination Methods Flashcards
6 cards from real API 510 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Non-Destructive Examination Methods flashcards as text
What is the advantage of ultrasonic testing (UT) for pressure vessel inspection?
Answer: It can measure remaining wall thickness and detect internal flaws
Ultrasonic testing measures remaining wall thickness accurately and can detect internal flaws without damaging the equipment.
When is radiographic testing (RT) preferred for pressure vessel weld examination?
Answer: When volumetric examination of welds is required to detect internal discontinuities
Radiographic testing provides volumetric examination of welds, revealing internal defects like porosity, inclusions, and incomplete fusion.
What does magnetic particle testing (MT) detect?
Answer: Surface and near-surface discontinuities in ferromagnetic materials
Magnetic particle testing detects surface and slightly subsurface discontinuities such as cracks in ferromagnetic materials.
What is the primary limitation of visual testing (VT)?
Answer: It can only detect surface-accessible defects
Visual testing is limited to detecting defects that are visible on accessible surfaces and cannot identify subsurface or internal flaws.
What is liquid penetrant testing (PT) used for in pressure vessel inspection?
Answer: Detecting surface-breaking discontinuities in non-porous materials
Liquid penetrant testing uses capillary action to reveal surface-breaking cracks and discontinuities on non-porous material surfaces.
What qualification must NDE technicians hold to perform pressure vessel examinations?
Answer: Certification to SNT-TC-1A or equivalent standard for each method
NDE technicians must be certified according to SNT-TC-1A or equivalent standards for each specific examination method they perform.