When comparing discontinuity echoes to equivalent flat bottom hole echoes in materials with similar impedance, surface finish and attenuation:

Related MCQs

• When inspecting a long bar with a longitudinal wave from one end, a series of additional echoes are seen immediately after the bottom surface reflection. these are most likely:
• A magnetic particle build-up from a discontinuity is strongest when the discontinuity is oriented:
• Flux density is a measure of the number of magnetic flux lines perpendicular to an area of cross-section. If a discontinuity is in the plane of the unit area, the strongest magnetic article indication will be formed when the discontinuity is:
• A smooth flat discontinuity whose major plane is not perpendicular to the direction of sound propagation may be indicated by:
• Which of the following materials of the same alloy is most likely to produce the greatest amount of sound attenuation over a given distance?
• In general, which of the following materials would have the least ultrasonic attenuation?
• Reference standards containing a series of flat bottom holes of the same diameter at different depths in each block are called?
• Sound waves which travel on the surface of a solid in a manner similar to waves on a water surface are called:
• An ultrasonic instrument control which allows moving an A scan display to the left or right without changing the distance between any echoes displayed is called:
• The ability to detect echoes from small reflectors is called: