During immersion testing of pipe or tubing the incident longitudinal wave angle must be limited to a narrow range. The reason for the upper limit is:

Related MCQs

• When a longitudinal wave is incident upon an inclined interface and is refracted at ninety degrees, the angle of the incident longitudinal wave is called:
• During immersion ultrasonic testing of pipe or tubing, spurious echoes may be caused by:
• The longitudinal wave incident angle at which the refracted shear wave angle equals ninety degrees is called:
• The relationship between the longitudinal wave incident angle and the refracted shear wave angle is defined by:
• A calibration for immersion ultrasonic testing of pipe or tubing should establish a transducer position such as:
• The longitudinal wave incident angle which results in formation of a rayleigh wave is called:
• Calculate the refracted shear wave angle in steel [VS = 0.323cm/microsec] for an incident longitudinal wave of 37.9 degrees in Plexiglas [VL = 0.267cm/microsec]
• Calculate the refracted shear wave angle in steel [VS = 0.323cm/microsec] for an incident longitudinal wave of 45.7 degrees in Plexiglas [VL = 0.267cm/microsec]
• Calculate the refracted shear wave angle in aluminium [VS = 0.31cm/microsec] for an incident longitudinal wave of 43.5 degrees in Plexiglas [VL =0.267cm/microsec]
• Calculate the refracted shear wave angle in aluminium [VS = 0.31cm/microsec] for an incident longitudinal wave of 53 degrees in Plexiglas [VL = 0.267cm/microsec]