During immersion ultrasonic testing of pipe or tubing, spurious echoes may be caused by:

Related MCQs

• A calibration for immersion ultrasonic testing of pipe or tubing should establish a transducer position such as:
• 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:
• When comparing discontinuity echoes to equivalent flat bottom hole echoes in materials with similar impedance, surface finish and attenuation:
• During ultrasonic testing by the immersion method, it is frequently necessary to angulate the search unit when a discontinuity is located at an angle in order to:
• Which of the following can be a source of spurious ultrasonic signals?
• 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:
• Spurious indications may be caused by which of the following?
• Spurious indications might be caused by which of the following?
• In immersion testing, the position of the search unit is often varied to transmit sound into the test part at various angles to the front surface. Such a procedure is referred to as:
• In immersion testing, verification that the search unit is normal to a flat entry surface is indicated by: