Examination –
Electromagnetic Testing
(ET) Exam
,Question 1
Which concern does not share the closest focus of the other two? I. “Material sorting
and verification based on electrical conductivity, alloy composition, heat treatment
condition, and hardness variations”; II. “Advanced and specialized techniques (pulsed
eddy current, remote field testing, alternating current field measurement (ACFM), and
array mapping)”; III. “resistance”.
A. None; all three have the same primary focus
B. II
C. III
D. I
Correct Answer: C
Full Explanation: “Advanced and specialized techniques (pulsed eddy current, remote field testing,
alternating current field measurement (ACFM), and array mapping)” and “Material sorting and
verification based on electrical conductivity, alloy composition, heat treatment condition, and hardness
variations” both relate to “Test Techniques and Applications”. “resistance” belongs to the different focus
“Impedance plane concepts and vector algebra representation”. The association follows the subject of
the concern, not merely a similar word in an alternative.
Question 2
Which distinction correctly groups I. “reflection (driver-pickup) coil arrangements”
with II. “eddy current array (ECA) assemblies” while treating III. “Instrument
classifications and circuitry (impedance plane display instruments, multi-frequency
systems, and automated testing architectures)” separately?
A. I–II: Probe designs and coil configurations; III: Probe designs and coil configurations
B. I–II: Probe designs and coil configurations; III: Electromagnetic Testing Equipment and
Instrumentation
C. I–II: Electromagnetic Testing Equipment and Instrumentation; III: Probe designs and coil
configurations
D. I–II: Electromagnetic Testing Equipment and Instrumentation; III: Electromagnetic Testing
Equipment and Instrumentation
Correct Answer: B
Full Explanation: The shared focus is “Probe designs and coil configurations”: it brings together
“reflection (driver-pickup) coil arrangements” and “eddy current array (ECA) assemblies”. “Instrument
classifications and circuitry (impedance plane display instruments, multi-frequency systems, and
automated testing architectures)” belongs to the different focus “Electromagnetic Testing Equipment
and Instrumentation”. Keeping these areas distinct avoids treating different concerns as
interchangeable.
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,Question 3
I. “Absolute, differential, and reflection (driver-pickup) coil arrangements” has been
associated with “Test Techniques and Applications”, and II. “Measurement of coating
thicknesses (non-conductive coatings on conductive substrates, and conductive
coatings on non-magnetic or magnetic metals)” with “Probe designs and coil
configurations”. Which correction restores the appropriate distinction?
A. I: Electromagnetic induction principles; II: Test Techniques and Applications
B. I: Probe designs and coil configurations; II: Electromagnetic induction principles
C. I: Test Techniques and Applications; II: Probe designs and coil configurations
D. I: Probe designs and coil configurations; II: Test Techniques and Applications
Correct Answer: D
Full Explanation: “Absolute, differential, and reflection (driver-pickup) coil arrangements” is a concern
within “Probe designs and coil configurations”. “Measurement of coating thicknesses (non-conductive
coatings on conductive substrates, and conductive coatings on non-magnetic or magnetic metals)” is a
concern within “Test Techniques and Applications”. Keeping these areas distinct avoids treating different
concerns as interchangeable.
Question 4
Select the missing term that preserves the meaning of “____ sizing, depth estimation,
and length/width profiling using phase angle and amplitude analysis”.
A. Discontinuity
B. Evaluation
C. Ancillary
D. Faraday's
Correct Answer: A
Full Explanation: The complete expression is “Discontinuity sizing, depth estimation, and length/width
profiling using phase angle and amplitude analysis”. The missing term is “Discontinuity”; the focus is
“Interpretation, Evaluation, and Acceptance Criteria”. By contrast, “internal (bobbin) probes” concerns
“Probe designs and coil configurations”.
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, Question 5
Which two concerns belong together in a focused treatment of “Codes, Standards,
Specifications, and Procedures” that includes “Interpretation of complex engineering
drawings”?
A. Formulation, drafting, and validation of written NDT instructions and operational procedures for
Level 1 personnel; data archiving requirements
B. permeability; data archiving requirements
C. Formulation, drafting, and validation of written NDT instructions and operational procedures for
Level 1 personnel; Fundamentals of electricity and magnetism (magnetic fields, flux, permeability,
and electrical conductivity)
D. permeability; pitting
Correct Answer: A
Full Explanation: The shared focus is “Codes, Standards, Specifications, and Procedures”: it brings
together “Formulation, drafting, and validation of written NDT instructions and operational procedures
for Level 1 personnel” and “data archiving requirements”. The relevant focus for “Interpretation of
complex engineering drawings” is “Codes, Standards, Specifications, and Procedures”. The distinction
matters because “Fundamentals of electricity and magnetism (magnetic fields, flux, permeability, and
electrical conductivity)” addresses “Principles of Electromagnetic Testing and Theory”, not the same
narrow concern.
Question 6
Which interpretation accurately separates “Differentiation and categorization of
relevant indications”, “length/width profiling using phase angle and amplitude
analysis”, and “Lenz's Law” between “Interpretation, Evaluation, and Acceptance
Criteria” and “Electromagnetic induction principles”?
A. “Differentiation and categorization of relevant indications” and “length/width profiling using phase
angle and amplitude analysis”: Interpretation, Evaluation, and Acceptance Criteria; “Lenz's Law”:
Electromagnetic induction principles
B. “Differentiation and categorization of relevant indications” and “Lenz's Law”: Interpretation,
Evaluation, and Acceptance Criteria; “length/width profiling using phase angle and amplitude
analysis”: Electromagnetic induction principles
C. “length/width profiling using phase angle and amplitude analysis” and “Lenz's Law”: Interpretation,
Evaluation, and Acceptance Criteria; “Differentiation and categorization of relevant indications”:
Electromagnetic induction principles
D. “Differentiation and categorization of relevant indications” and “length/width profiling using phase
angle and amplitude analysis”: Electromagnetic induction principles; “Lenz's Law”: Interpretation,
Evaluation, and Acceptance Criteria
Correct Answer: A
Full Explanation: “Differentiation and categorization of relevant indications” and “length/width
profiling using phase angle and amplitude analysis” both relate to “Interpretation, Evaluation, and
Acceptance Criteria”. The distinction matters because “Lenz's Law” addresses “Electromagnetic
induction principles”, not the same narrow concern. Each concern must retain its own immediate
context; sharing a broader field does not make their specific roles identical.
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