ASNT Level III Midterm Exam 2025 - Complete with
120 Verified Questions & Answers
Questions and Mark scheme
Version: Final 1.1
, CHAPLET - ✔✔metal support used to hold a "core" in place on a mold.
CHARGE COUPLE DEVICE (CCD) - ✔✔solid state image sensors.
CHATTER - ✔✔in machining or grinding, vibration of tool, wheel or work piece producing a wavy surface on the work.
CHILL - ✔✔metal insert embedded in the surface of a sand mold or core or placed in a mold cavity to increase the
cooling rate at that point.
CIRCUMFERENTIAL - ✔✔direction around the perimeter of a cylindrical surface.
CODE - ✔✔standard enacted or enforced as a law
COEFFICIENT OF THERMAL EXPANSION (CTE) - ✔✔rate of expansion or contraction per unit of length, volume or area
per degree of temp change between specific lower or upper temp limits.
COERCIVE FORCE - ✔✔reverse external magnetic field intensity required to reduce the test objects bulk magnetism to
zero
ABSOLUTE COIL - ✔✔a coil that response to the electromagnetic properties of that region of the test object within the
magnetic field of the coil, without comparison to the response of a second coil at a different location on the same
material.
ACOUSTIC EMISSION - ✔✔Transient elastic waves resulting from local internal micro-displacements in a material
ACOUSTIC EMISSION ACTIVITY - ✔✔Number of bursts ( or events, if the approriate conditions are fulfilled) detected
during test or part of test
ACOUSTIC EMISSION EVENT - ✔✔Micro-structural displacement that produces elastic waves in a material under load or
stress