acoustic emission testing quiz

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- Acoustic Emission Testing Quiz - Basic Level Questions & Answers Questio n [Ref] read 1 In what acoustic frequency range works AE testing usually? - NDT Encyclopedia AE a) 10 Hz - 100 KHz b) 20 KHz to 1 MHz c) 20 KHz to 100 KHz 2 What generates the acoustic waves? - NDT Encyclopedia AE a) the transducer b) the crack 3 How many transducers are used to record the acoustic waves - NDT Encyclopedia AE - sensor a) One and more transducers b) Always one transducer c) Four transducers 4 What kind of signal is generated by a crack - NDT Encyclopedia AE - signal a) shock wave signal b) continuous signal c) burst signal 5 What is a guard sensor - NDT Encyclopedia AE - guard sensor a) to discriminate from sources originating outside the area of interest b) to localize the position of an acoustic emission source 6 What did Hsu-Nielsen invent - NDT Encyclopedia AE - Hsu-Nielsen a) an acoustic emission transducer b) an aid to simulate an acoustic emission event

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Acoustic Emission Quiz

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Page 1: Acoustic Emission Testing Quiz

- Acoustic Emission Testing Quiz - Basic Level Questions & Answers 

Question [Ref] read

1 In what acoustic frequency range works AE testing usually? - NDT

Encyclopedia AE

a) 10 Hz - 100 KHz

b) 20 KHz to 1 MHz

c) 20 KHz to 100 KHz2 What generates the acoustic waves?

 - NDT Encyclopedia AE

a) the transducer

b) the crack3

How many transducers are used to record the acoustic waves - NDT

Encyclopedia AE - sensor

a) One and more transducers

b) Always one transducer

c) Four transducers4

What kind of signal is generated by a crack - NDT

Encyclopedia AE - signal

a) shock wave signal

b) continuous signal

c) burst signal5

What is a guard sensor - NDT

Encyclopedia AE - guard sensor

a) to discriminate from sources originating outside the area of interestb) to localize the position of an acoustic emission source

6What did Hsu-Nielsen invent

 - NDT Encyclopedia AE - Hsu-Nielsen

a) an acoustic emission transducer

b) an aid to simulate an acoustic emission event

c) a signal filter techniquepencil lead break. ')">7

What is the Kaiser effect - NDT

Encyclopedia AE - Kaiser effect

Page 2: Acoustic Emission Testing Quiz

a) describes the phenomenon that a material under load emits acoustic waves only after a primary load level is exceededb) appearance of significant acoustic emission at a load level below the previous maximum applied level

8What effect appears first when loading a material

 - NDT Encyclopedia AE - Felicity effect

a) the Kaiser effect

b) the Felicity effect9 What can AE not be used for

 - NDT Encyclopedia AE

a) defect location

b) defect sizing10

What is an important wave mode in AE testing - NDT

Encyclopedia AE - Wave velocity

a) longitudinal wave

b) transversal wave

c) Lamb wave

Questions & Answers - Acoustic Emission Testing Quiz - Basic Level

Question [Ref] read

1 In what acoustic frequency range works AE testing usually?

 - NDT Encyclopedia AE

a) 10 Hz - 100 KHz

b) 20 KHz to 1 MHz

c) 20 KHz to 100 KHz2 What generates the acoustic

waves? - NDT Encyclopedia AE

a) the transducer

b) the crack3 How many transducers are used

to record the acoustic waves - NDT Encyclopedia AE - sensor

a) One and more transducers

b) Always one transducer

Page 3: Acoustic Emission Testing Quiz

c) Four transducers4 What kind of signal is generated

by a crack - NDT Encyclopedia AE - signal

a) shock wave signal

b) continuous signal

c) burst signal5 What is a guard sensor  - NDT Encyclopedia AE - guard sensor

a) to discriminate from sources originating outside the area of interestb) to localize the position of an acoustic emission source

6 What did Hsu-Nielsen invent  - NDT Encyclopedia AE - Hsu-Nielsen

a) an acoustic emission transducerb) an aid to simulate an acoustic emission eventc) a signal filter technique

pencil lead break. ')">7 What is the Kaiser effect  - NDT Encyclopedia AE - Kaiser effect

a) describes the phenomenon that a material under load emits acoustic waves only after a primary load level is exceededb) appearance of significant acoustic emission at a load level below the previous maximum applied level

8 What effect appears first when loading a material

 - NDT Encyclopedia AE - Felicity effect

a) the Kaiser effect

b) the Felicity effect9 What can AE not be used for  - NDT Encyclopedia AE

a) defect location

b) defect sizing10 What is an important wave mode

in AE testing - NDT Encyclopedia AE - Wave velocity

a) longitudinal wave

b) transversal wave

c) Lamb wave