A smooth flat discontinuity whose major plane is not perpendicular to the direction of sound propagation may be indicated by:

Related MCQs

• 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 magnetic particle build-up from a discontinuity is strongest when the discontinuity is oriented:
• Waves whose particle displacement is parallel to the direction of propagation are called:
• When comparing discontinuity echoes to equivalent flat bottom hole echoes in materials with similar impedance, surface finish and attenuation:
• A weld discontinuity which consists of unmelted joint surfaces at the root, and which may be caused by poor fit- up, is called:
• A weld discontinuity which consists of unmelted joint surfaces at the root, and which may be caused by poor fit-up, is called:
• When the motion of the particles of a medium is transverse to the direction of propagation, the wave being transmitted is called a:
• An ultrasonic wave in which particle displacement is 90 degrees to the direction of wave propagation is called a:
• When the motion of the particles of a medium is parallel to the direction of propagation, the wave being transmitted is called a:
• In immersion testing, verification that the search unit is normal to a flat entry surface is indicated by: