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During qualitative fit testing, which of the following are test subjects required to read?
Newspaper article about respirators use
The Gettysburg Address
The Rainbow Passage
The safety motto
The correct answer is: The Rainbow Passage
The selection of "The Rainbow Passage" as the correct answer stems from its specific characteristics that make it particularly suitable for qualitative fit testing. This passage is a well-known text that includes a variety of phonetic sounds and vocal patterns, allowing testers to evaluate how well the respirator fits across different speech characteristics. The diverse linguistic elements help in identifying potential leaks or insufficient fit in a way that is consistent and reliable. The other text options, while they may contain readable material, do not serve the same function. A newspaper article about respirators may focus more on informative content rather than the vocal range and sounds necessary for effective testing. The Gettysburg Address is more historical and may not present the necessary phonetic variety for fit testing. The safety motto might lack the complexity needed to effectively assess the fit quality of respirators. Therefore, "The Rainbow Passage" stands out as the appropriate choice for this testing process.