UT LEVEL 1|118 Questions with 100% Correct Answers | Updated 2024 | Guaranteed A+
The advantages of immersion testing include which of the following? - ️️All of the above. In immersion testing, verification that the search unit is normal to a flat entry surface is indicated by: - ️️Maximum reflection from the entry surface The process of comparing an instrument or device with a standard is called: - ️️Calibration The product of the acoustic velocity of sound in a material and the density of the material is the factor that determines the amount of reflection or transmission of ultrasonic energy when it reaches an interface. This term is called: - ️️Acoustic impedance An A-scan CRT display which shows a signal both above and below the sweep line is called a: - ️️RF display A material used between the face of a search unit and the test surface to permit or improve the transmission of ultrasonic vibrations from the search unit to the material being tested is called: - ️️A couplant A search unit with a frequency greater than 10 MHz will most likely be used during: - ️️An immersion test The velocity of surface waves is approximately ________ the velocity of shear waves in the same material. - ️️Nine-tenths A search unit containing three or more individual transducer elements is often referred to as a: - ️️Mosaic transducer
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