which element is used in fluorescent lamps and emits ultraviolet light when excited
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ATI TEAS 7

TEAS Test 7 science

1. Which element is used in fluorescent lamps and emits ultraviolet light when excited?

Correct answer: A

Rationale: Mercury is the correct element used in fluorescent lamps to emit ultraviolet light when excited. When an electric current passes through the mercury vapor inside the lamp, it generates ultraviolet (UV) light. This UV light then excites the phosphors coated on the inner surface of the lamp, causing them to emit visible light. Neon, argon, and krypton are not commonly used in fluorescent lamps for this purpose. Neon is primarily used in neon signs, argon is used in incandescent and fluorescent bulbs for inertia gas, and krypton is mainly used in certain types of specialized light bulbs for its specific properties.

2. It can be inferred from the advertisement that

Correct answer: A

Rationale: It can be inferred from the advertisement that a person staffing this position may work independently and/or as part of a team. The job description mentions the requirement for the ability to work both self-directed and as part of a team, indicating flexibility in working styles. Choice B is incorrect as Veronica Smith is mentioned as the contact for application submission, not the hiring decision-maker. Choice C is incorrect as there is no mention of caseload sizes for new hires. Choice D is incorrect as the advertisement does not specify part-time work as an option.

3. What is the equivalent weight in pounds for 45 kg? (1 kg = 2.2 lbs)

Correct answer: C

Rationale: To convert kilograms to pounds, multiply the weight in kilograms by the conversion factor 2.2 (1 kg = 2.2 lbs). Therefore, 45 kg * 2.2 lbs/kg = 99 lbs. Choice A is incorrect because it is a miscalculation. Choice B is incorrect as it does not reflect the correct conversion. Choice D is incorrect as it is also a miscalculation of the conversion.

4. What is the recommended daily fiber intake for adults?

Correct answer: B

Rationale: The recommended daily fiber intake for adults is around 25 grams for women and 38 grams for men. Fiber is essential for maintaining a healthy digestive system, preventing constipation, and reducing the risk of chronic diseases such as heart disease and diabetes. Consuming an adequate amount of fiber can also help with weight management and promote overall well-being. Option B is the correct answer based on the recommended daily intake guidelines for adults. Choices A, C, and D are incorrect because they do not align with the established guidelines for fiber intake in adults. 10 grams (choice A) is too low, 35 grams (choice C) is higher than the general recommendation, and 50 grams (choice D) is significantly above the recommended intake, which may lead to digestive issues in some individuals.

5. The author of the passage notes several distinctions between Tennyson and Malory. Which of the following is not identified as a difference between the two authors?

Correct answer: D

Rationale: The correct answer is D. The passage doesn't specifically mention the characters Gareth, Tristan, and Isolde as being exclusive to Malory. However, it does highlight that Malory focused on Arthurian legends while Tennyson also wrote about the same characters. Choice A is incorrect because Malory wrote in prose, while Tennyson wrote in poetry, as stated in the passage. Choice B is incorrect as Malory wrote during the Medieval era, while Tennyson wrote during the Victorian era, according to the passage. Choice C is incorrect because Malory was more focused on heroism and morality, while Tennyson was more focused on nature and elegy, as mentioned in the extract.

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