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ultrasonic Shear wave testing questions and answers verified 2024
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ultrasonic Shear wave testing questions and answers verified 2024
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ultrasonic Shear wave testingwhich of the following would be considered applications of ultrasonic
techniques - correct answer ✔determination of a materials elastic modulus
study of the materials metallurgical structure
measurements of a materials thickness
which of the following may result in a long narrow rod if the beam Divergence
results in a reflection from a side of the test piece before the sound wave
reaches the back surface - correct answer ✔conversion from the longitudinal
mode to shear mode
the ratio of the velocity of sound in water compared to that for aluminum or
steel is approximately - correct answer ✔1:4
when using Focus transducers non symmetry and a propagated sounding
may be caused by - correct answer ✔lens centering or misalignment
a 45 degree angle shear wave beam transducer produces a wave in the metal
that is polarized - correct answer ✔perpendicular to the direction of
propagation and at 45° to the entry surface and 45 degrees to the normal to
the entry surface
on in A- scan display what represents the intensity of a reflected beam -
correct answer ✔signal amplitude
as transducer diameter decreases the beam spread - correct answer
✔increases
, a smooth flat discontinuity whose major plane is not perpendicular to the
direction of sound propagation may be indicated by - correct answer ✔a
complete loss of back surface reflection
the attenuation of energy within a material in the far field of the ultrasonic
beam may be expressed as the - correct answer ✔exponential decay
when conducting a contact ultrasonic test the hash or irregular signals that
appear on the display could be caused by - correct answer ✔coarse reins in
the structure
the scattering of the rays of an ultrasonic beam due to reflection from a highly
irregular surface is called - correct answer ✔dispersion
a short burst of alternating electrical energy is called - correct answer ✔a
pulse
the phenomenon by which a wave strikes a boundary and changes the
direction of its propagation within the same medium is referred to as - correct
answer ✔reflection
the change in direction of ultrasonic beam when it is passes from one medium
to another who's velocity differs from that of the first medium is called - correct
answer ✔refraction
which of the following is a functional setting of currently used ultrasonic
equipment - correct answer ✔basic functions
pulsar functions
receiver functions
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