- Page 1 and 2: Electromagnetic TestingQuestions &
- Page 3 and 4: Petrochemical ApplicationsCharlie C
- Page 5 and 6: Petrochemical ApplicationsCharlie C
- Page 7 and 8: Petrochemical ApplicationsCharlie C
- Page 9 and 10: Petrochemical ApplicationsCharlie C
- Page 11 and 12: Petrochemical ApplicationsCharlie C
- Page 13 and 14: Charlie Chong/ Fion Zhanghttp://gre
- Page 15 and 16: Charlie Chong/ Fion Zhang
- Page 17 and 18: IVONA TTS Capable.Charlie Chong/ Fi
- Page 19 and 20: My MangoesCharlie Chong/ Fion Zhang
- Page 21 and 22: ConductivityA. Heat treatment give
- Page 23 and 24: ACFM Level I Q&ACharlie Chong/ Fion
- Page 25 and 26: 1. Which of the following frequenci
- Page 27 and 28: 5. When the permeability (μ) of a
- Page 29: Reluctance.Magnetic reluctance, or
- Page 33 and 34: 14. The depth of penetration in a m
- Page 35 and 36: 18. What is the predominant electro
- Page 37 and 38: 20. In what way does the magnetic f
- Page 39 and 40: The perturbated uniform electric fi
- Page 41 and 42: Simple Semi Elliptical ModelB max =
- Page 43 and 44: 21. What is the symbol for resistan
- Page 45 and 46: 25. If it is required to generate a
- Page 47 and 48: 28. During an alternating current f
- Page 49 and 50: 30. For accurate depth sizing when
- Page 51 and 52: 8.9 Crack Geometry Effects:8.9.1 A
- Page 53 and 54: 32. For accurate depth sizing, why
- Page 55 and 56: 35. If a hysteresis loop were produ
- Page 57 and 58: 36. The AC field measurement techni
- Page 59 and 60: 38. In which of the following envir
- Page 61 and 62: 42. What is the symbol for electric
- Page 63 and 64: 46. For which of the following insp
- Page 65 and 66: 50. Alternating current field measu
- Page 67 and 68: ACFM Level II Q&ATWOCharlie Chong/
- Page 69 and 70: 1. The Bz, magnetic field can best
- Page 71 and 72: 4. If a current is flowing in a sur
- Page 73 and 74: 6. For accurate sizing, why must th
- Page 75 and 76: 10. If alternating current field me
- Page 77 and 78: 12. What is the effect of lift-off
- Page 79 and 80: 16. Which of the following has no e
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8.9 Crack Geometry Effects:8.9.4 Tr
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20. What is the value of the Bz, ma
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24. High and low current density re
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28. What is the coupling medium bet
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32. Alternating current field measu
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Recalling the mistakesCharlie Chong
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Answers to ACFM Level III1.a 2.d 3.
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3. Which of the following is not a
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7. A large, uniform input field in
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8. It is reasonable to expect that
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12. AC field measurement was origin
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14. With AC field measurement, a co
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Eddy Current TestingCharlie Chong/
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Answers to Eddy Current Testing Lev
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3. Which of the following is not a
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7. Which of the following would nor
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11. The depth to which eddy current
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14. Lift-off is utilized in:a. meas
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17. Which of the following conditio
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Inductive reactance (XL) in terms o
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21. An increase in the impedance (Z
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23. When a test coil consists of a
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27. An absolute coil arrangement ca
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30. Reference standards used for el
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34. The entire cross-sectional area
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38. When eddy current testing rod f
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42. Which of the following is not a
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46. A coil's magnetic field may be
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50. Which of the following statemen
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53. When sorting on the variation b
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57. Nondestructive tests are common
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60. Which of the following is not a
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62. When you determine that a disco
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66. One principal advantage of spin
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69. In a feed through encircling co
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72. In a feedthrough encircling coi
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76. A symbol commonly used to expre
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79. When eddy current testing a non
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If the eddy current circuit is bala
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82. A multicoil array probe used in
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86. Which of the following is appli
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89. The process of comparing the re
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93. The characteristics of the alte
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96. The depth of penetration would
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Eddy Current Testing Level II Q&ATW
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1. A method of minimizing the effec
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5. A term used to describe the effe
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9.The impedance change of an eddy c
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11. When conducting, an electromagn
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15. In a test coil consisting of bo
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19. Doubling the number of turns on
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23. If the characteristic frequency
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25. If the test frequency increases
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28. In Figure 2 (an impedance diagr
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30. In Figure 3, the solid curves a
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32. Figure 4 illustrates the fact t
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33. To eliminate any dependence on
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37. Figure 5 illustrates the fact t
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3.1.2 Limiting Frequency f g of Enc
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Charlie Chong/ Fion Zhang
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41. The use of magnetic shielding a
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45. A surface coil mounted so that
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47. The conductivity (σ) value for
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51. Which of the following coil arr
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53. An eddy current test coil's mag
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DiscussionSubject: 55. When a nonfe
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Conductivity and ResistivityConduct
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From Eq. (4.3) it can be seen that
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Keywords:• 100% IACS - (high puri
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58. Which of the following is not a
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62. For age hardenable aluminum and
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63. The penetration of eddy current
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66. When a rod is placed in an enci
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69. Two test coils are often used i
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73. The magnetic domains in an unma
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77. The magnetizing force of a satu
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80. The two sine wave signals (V an
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83. In Figure 8, B represents:a. th
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86. A term used to define a propert
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Recalling the mistakesCharlie Chong
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Answers to Eddy Current Testing Lev
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3. Handheld probe-type eddy current
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5. In Figure 9, AC current flowing
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7. Which of the following is a prop
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10. The tubular product parameter h
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14. A distinct advantage of using h
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17. The reactance component is decr
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18. Test coils may be shielded with
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21. An alternating current produces
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24. The electromagnetic field in a
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27. The inductive reactance of a te
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29. An operating frequency of 100kH
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32. Figure 13 indicates that when i
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36. Which material should be select
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40. When testing for the unknown co
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44. Increasing the heat-treating te
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Charlie Chong/ Fion Zhang
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Recalling the mistakesCharlie Chong
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Charlie Chong/ Fion Zhang
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Good LuckCharlie Chong/ Fion Zhang