ASNT LEVEL III BASIC MATERIALS AND PROCESES FINAL EXAM PREP 2025/2026 ACCURATE QUESTIONS WITH CORRECT DETAILED ANSWERS || 100% GUARANTEED PASS LATEST VERSION

ASNT LEVEL III BASIC MATERIALS AND PROCESES FINAL EXAM PREP 2025/2026 ACCURATE QUESTIONS WITH CORRECT DETAILED ANSWERS || 100% GUARANTEED PASS LATEST VERSION 1. MICROWAVE TESTING - ANSWER method for its probing energy, electromagnetic radiation radio frequencies. 2. NEURAL ACUITY - ANSWER ability of the eye and brain together to discrimination is influenced by knowledge of the target pattern, by the the scanning technique and by the figure-to-ground relationship of a discontinuity. 3. NOBLE METALS - ANSWER cathodic metals ( such as gold, platinum and silver) which strongly resist corrosion. 4. OPAQUE - ANSWER in infrared and thermal testing, impenetrable to radiant energy. In thermography, an opaque material is one that does not transmit thermal infrared energy 5. PARALLAX - ANSWER apparent difference in position of an imaged point according to two differently positioned sensors. 6. PARAMAGNETIC MATERIAL - ANSWER a material that has a relative permeability slightly greater than unity and it practically independent of the magnetizing force. 7. PASS (WELDING) - ANSWER a single bead of weld metal along the entire joint or the process of laying down that bead. 8. PENETRABILITY - ANSWER ability of a material to be penetrated by an energy or liquid. 9. PERMEABILITY - ANSWER ability of a material to be magnetized, measured as increase in flux density 10. PIEZOELECTEIC EFFECT - ANSWER ability of certain materials to convert electrical energy (voltage) into mechanical energy (stress) and vice versa 11. PLASTIC DEFORMATION - ANSWER permanent distortion due to an applied stress above a materials elastic limit. 12. POSTEMULSIFICATION - ANSWER liquid penetrant removal step that uses a separate emulsifier applied over the surface liquid penetrant to render it removable by water spray 13. PRECIPITITATION HARDENING - ANSWER Hardening in metals caused by the formation of a constituent from a super-saturated solid solution. method commonly applied to many aluminum alloys to increase strength 14. PROPAGATION - ANSWER advancement of energy or a crack through a medium 15. PSEUDOISOCHROMATIC / ISHIHARA PLATES - ANSWER images used for color vision examinations. 16. PULSE ECHO TECHNIQUE - ANSWER ultrasonic technique in which discontinuities are detected by return echos from the transmitted pulse. 17. PYROMETRY - ANSWER measurment of fire or hot objects 18. REFRACTED BEAM - ANSWER Beam transmitted in the second medium when an ultrasonic beam is incident at an acute angle on the interface between two media having different sound speeds. 19. REFRACTION - ANSWER deflection of a wave due to a change in its speed as it passed from on material to another. 20. RELUCTANCE - ANSWER resistance of a material to changes in magnetization. 21. SATURATION - ANSWER (1) in NDT signal amplitude at or above sensors maximum capability (2) in mag-particle testing, the degree of magnetization forces produces no significant increase in magnetic flux density in a object 22. SCALE - ANSWER layer of adherent oxidation product on the surface of metal, caused by elevated temp exposure to an oxidizing atmosphere. also known as corrosion, and rust 23. SECONDARY MAGNETIC FLUX - ANSWER electromagnetic testing, magnetic flux due to induced flow of eddy currents 24. SIEMENS PER UNIT (S.m-1) - ANSWER SI unit for conductivity 25. SKIN EFFECT - ANSWER in mag-particle and electromagnetic testing, term used to describe the penetration ability of cyclical current or magnetization as a function of frequency, conductivity and relative permeability. in Mag-particle it refers to A/C inability to penetrate deeper than 1-3 mm 26. SKIP DISTANCE (ULTRASONIC TESTING) - ANSWER in angle beam tests of plates and pips. the distance from the sound entry point to the exit point on the same surface after reflection from the back surface. also called the "V"path 27. SNELL'S LAW - ANSWER in optics and acoustics, the physical law that defines the relationship between the angle of incidence and the angle of refraction. 28. ALLOTROPIC - ANSWER the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of these elements. 29. DYNAMIC LOADING - ANSWER mechanism by which a computer program can, at run time, load a library (or other binary) into memory, retrieve the addresses of functions and variables contained in the library, execute those functions or access those variables, and unload the library from memory. 30. ISOTOPE - ANSWER two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element. 31. EMISSIVITY - ANSWER the measure of an object's ability to emit infrared energy. Emitted energy indicates the temperature of the object. 32. DIFFUSIVITY - ANSWER a measure of the rate at which particles or heat or fluids can spread. It is measured differently for different mediums 33. SPATIAL - ANSWER relating to, occupying, or having the character of space 34. COERCIVE FORCE - ANSWER measure of the ability of a ferromagnetic material to withstand an external magnetic field without becoming demagnetized. 35. μm - ANSWER one millionth of a meter. 36. BLACK BODY - ANSWER a hypothetical radiation source that yields the maximum radiation energy theoretically possible at a given temperature.