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Zorluk: OrtaAuthor's Primary Purpose

Read the following passage:

Eddy current testing is a non-destructive inspection method widely utilized in aviation maintenance to identify subsurface fatigue cracks in conductive metallic components without damaging the material. During the procedure, an inspection probe containing a coil energized with alternating current is swept across the surface of an aluminum structure. This alternating current induces circular eddy currents within the conductive test piece. If a crack or structural flaw disrupts the flow of these circulating currents, the secondary magnetic field changes, causing a measurable fluctuation in probe coil impedance. By interpreting these electrical signal variations, technicians can detect microscopic defects long before visible surface fissures develop.

Statement: The author's primary purpose in this passage is to explain the operational principle and diagnostic function of eddy current testing in aircraft maintenance.

Cevap: Cevap

Cevap

True
The correct response is True because the passage is structured around explaining how eddy current testing operates—from alternating current excitation and magnetic field induction to signal disruption—and why it is valuable for detecting structural defects in aircraft maintenance.

Adım Adım Çözüm

1
Analyze the scope and topic sentences of the passage
The opening sentence defines eddy current testing as an inspection method to detect subsurface flaws in aircraft components, while subsequent sentences outline the step-by-step electromagnetic process.
Identifying the central subject and how supporting details relate to it reveals the author's primary communication objective.
2
Synthesize the technical details to evaluate the overall communicative intent
The author explains the interaction between alternating current, magnetic fields, coil impedance, and defect identification to inform the reader how and why the procedure works.
Distinguishing the holistic explanatory purpose from isolated technical details ensures accurate determination of primary intent.
3
Compare the synthesized purpose with the given statement
The statement accurately captures both the underlying mechanism (operational principle) and the practical application (diagnostic function) described in the passage.
Matching the passage's primary focus to the statement confirms that the statement is true.

Anahtar Kavram

Author's Primary Purpose
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