Examkin

Question

Difficulty: HardAuthor's Primary Purpose

Passage:
Traditional aircraft structural maintenance relies heavily on replacing fatigued airframe components or applying mechanical doublers—riveted patches that add localized weight and create secondary stress concentrations. Cold spray additive manufacturing presents a restorative alternative by accelerating micro-sized metallic particles at supersonic velocities onto damaged substrates. Because the kinetic impact bonds particles without melting the base alloy, it avoids thermal distortion and preserves the metallurgical temper of heat-treated aviation metals. Consequently, maintenance depots can rebuild worn structural geometries to original tolerances directly on-site, significantly reducing depot turnaround times while maintaining baseline fatigue resistance.

Statement: The author's primary purpose in the passage is to explain how cold spray additive manufacturing addresses the metallurgical and operational limitations of traditional aircraft repair methods.

Answer: Answer

Answer

True
The statement accurately captures the communicative objective of the text, which is to explain how the non-thermal bonding mechanism of cold spray additive manufacturing overcomes the structural and logistical drawbacks of conventional airframe repair.

Step-by-Step Solution

1
Identify the introductory context and central problem presented in the passage.
The opening sentence outlines the operational and structural shortcomings of traditional maintenance techniques, specifically weight increases, secondary stress concentrations, and full component replacement.
Understanding the context establishes the baseline problem the author intends to address.
2
Analyze how the author describes the technical solution and its specific mechanisms.
The text explains that cold spray achieves solid-state kinetic bonding without melting, which prevents thermal distortion and maintains the metal's heat-treated properties.
Tracking the supporting details reveals the core technical explanation underpinning the passage.
3
Synthesize the concluding outcomes and evaluate the alignment of the statement with the overall communicative goal.
The passage concludes by connecting these material characteristics to depot-level operational benefits (on-site restoration, reduced turnaround, preserved fatigue resistance), confirming that the overall objective is to explain how the technology resolves traditional repair limitations.
Comparing the overarching synthesis against the proposed statement confirms that the statement accurately describes the author's primary purpose.

Key Concept

Identifying the author's primary purpose by synthesizing the problem-solution rhetorical structure and distinguishing the comprehensive objective from isolated technical details.
Estimated Time:1m 30s
Rate this question

Topics

Author's Primary Purpose

More questions from this topic