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Quiz

NDT Acoustic Emission Testing (AE) Level I

Chris Wyatt 14 perguntas

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Perguntas do quiz (14)

  1. 1A qualitative description of the sustained signal level produced by rapidly occurring acoustic emission events is the accepted term for:
    1. Aburst emission.
    2. Bacoustic emission signature.
    3. Cacoustic emission signal.
    4. Dcontinuous emission.
  2. 2Attenuation of a wave is best defined by which statement?
    1. AA decrease in frequency with distance traveled.
    2. BA decrease in amplitude with distance traveled.
    3. CA decrease in wave speed with distance traveled.
    4. DA change in direction as a function of time.
  3. 3The number of times the acoustic emission signal exceeds a preset threshold during any selected portion of a test is called the acoustic emission ______________.
    1. Aresponse
    2. Bcount
    3. Ccount rate
    4. Denergy
  4. 4The most common frequency range of acoustic emission testing is:
    1. A10-15 kHz.
    2. B100-300 kHz.
    3. C500-750 kHz.
    4. D1-5 MHz.
  5. 5Discontinuities that are not readily detectable by acoustic emission testing are:
    1. Aleaks.
    2. Bplastic deformation.
    3. Cgrowing cracks.
    4. Drounded inclusions.
  6. 6The total energy loss of a propagating wave is called:
    1. Ascatter.
    2. Bdispersion.
    3. Cdiffraction.
    4. Dattenuation.
  7. 7Hold periods at high loads during fiberglass-reinforced pressure (FRP) vessel examinations using ASME Article 11 are necessary to:
    1. Acalculate the Felicity Ratio.
    2. Bcheck for leaks.
    3. Cmonitor continued damage.
    4. Dmeasure the Kaiser Ratio.
  8. 8In acoustic emission testing per ASME Section V, Article 11, sensor spacing on fiberglass-reinforced pressure (FRP) vessels is governed by:
    1. Aattenuation.
    2. Bthe test article temperature.
    3. Csensor diameter.
    4. Dthe type of couplant.
  9. 9How can an examiner be assured that proper contact has been made between the sensor and the vessel?
    1. AApply extra couplant around the sensor.
    2. BUse heavy-duty fasteners on sensors and cables.
    3. CMeasure the peak amplitude response from a simulated acoustic emission source.
    4. DUse acoustic waveguides.
  10. 10The source of the energy of the acoustic emission wave during crack growth is the:
    1. Aacoustic emission sensor.
    2. Bsurface energy of the new crack.
    3. Celastic stress field in the structure.
    4. Dpower supply from the mainframe to the preamplifier.

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NDT Acoustic Emission Testing (AE) Level I Review
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English
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