ASNT LEVEL 1 UT QUESTIONS WITH CORRECT ANSWERS|100% verified

ASNT LEVEL 1 UT QUESTIONS WITH CORRECT ANSWERS the back-surface reflection. CORRECT ANSWER 1. The indication on the instrument display that represents the far boundary of material being tested is called: angulation. CORRECT ANSWER 2. In immersion testing, the position of the transducer is often varied by a manipulator to transmit sound into the test part at various angles to the front surface. Such a procedure is referred to as: coaxial cable CORRECT ANSWER 3. The technical name for the cable that connects the ultrasonic instrument to the transducer is: calibration. CORRECT ANSWER 4. The process of standardizing an instrument or device by using a reference standard is called: longitudinal wave. CORRECT ANSWER 5. Another name for a compressional wave is: surface waves. CORRECT ANSWER 6. Another name for Rayleigh waves is : a couplant. CORRECT ANSWER 7. A material used between the face of a transducer and the test surface to permit or improve the transmission of ultrasonic vibrations from the transducer to the material being tested is called: crystal. CORRECT ANSWER 8. The piezoelectric material in a transducer that vibrates to produce ultrasonic waves is called a straight beam testing. CORRECT ANSWER 9. Ultrasonic testing of material where the probe is in direct contact with the material being tested may be: is one of the most efficient receivers of ultrasonic energy CORRECT ANSWER 10. An advantage of using lithium sulfate in transducers is that it: 25 MHz transducer CORRECT ANSWER 12. The transducer that contains the thinnest piezoelectric crystal is a: 1 MHz CORRECT ANSWER 13. Penetration of ultrasonic waves in a material is normally the function of test frequency used. The greatest depth of penetration is provided by a frequency of frequency and crystal size. CORRECT ANSWER 14. The amount of beam divergence from a crystal is primarily dependent on the