which claim from the passage best describes the benefits of nanotechnology

HESI A2

HESI A2 Reading Comprehension V2 2024

1. Which claim from the passage best describes the benefits of nanotechnology?

A. Scientists can develop novel technologies and products.
B. Nanotechnology is defined as the understanding and control of matter at dimensions of roughly 1 to 100 nanometers.
C. The different colors can be used in simple medical tests to indicate infection or disease.
D. Unique properties of materials emerge.

Correct answer: D

Rationale: The correct answer is D because the passage specifically states that at the nanoscale, unique properties of materials emerge, which is a key benefit of nanotechnology. Choice A talks about what scientists can do but does not directly describe the benefits mentioned in the passage. Choice B is the definition of nanotechnology and not a specific benefit. Choice C mentions the use of different colors in medical tests, which is a specific application rather than a general benefit of nanotechnology.

2. Which sound waves have a higher pitch?

A. Those waves that are closer together
B. Those waves that are farther apart
C. Those waves that travel a long distance
D. Those waves that travel a short distance

Correct answer: A

Rationale: Sound waves that are closer together have a higher pitch. This is explained by the Doppler Effect, where as a source of sound moves closer to an observer, the waves are compressed, resulting in a higher frequency and a higher pitch. Conversely, when the source moves away, the waves are stretched, leading to a lower frequency and a lower pitch. Therefore, choice A is correct. Choices B, C, and D are incorrect as they do not accurately describe the relationship between sound wave frequency and pitch.

3. What is the purpose of white elephants in the tradition mentioned in the passage?

A. White elephants are symbols of wealth and power.
B. White elephants represent unwanted and burdensome gifts.
C. White elephants are used in religious ceremonies.
D. White elephants are mythological creatures with no real use.

Correct answer: B

Rationale: In the tradition mentioned in the passage, white elephants were given as punishment gifts by rulers to those who displeased them. These white elephants were considered burdensome because they were sacred and could not be made to work like other elephants. The recipients had to bear the high maintenance costs and care for the white elephants in a lavish style, leading to financial burdens and sometimes impoverishment. This tradition originated the term 'white elephant' to denote unwanted gifts. Therefore, the correct answer is B. Choice A is incorrect because white elephants were not symbols of wealth and power in this context; they were burdensome gifts. Choice C is incorrect as there is no mention of white elephants being used in religious ceremonies in the passage. Choice D is incorrect as white elephants in the tradition were real elephants, not mythological creatures with no practical use.

4. What was the author's motive for writing the paragraph?

A. Encourage overeating.
B. Criticize healthy eating habits.
C. Urge self-control.
D. Promote exercise.

Correct answer: C

Rationale: The author's motive for writing the paragraph is to urge self-control. The text emphasizes the importance of moderation in food and drink consumption to avoid serious physical and mental health problems. It highlights the negative consequences of overeating and alcohol abuse, pointing out the strain on the heart, diabetes risk, shortened lifespan, and emotional eating habits. By discussing the issues related to overconsumption, the author aims to promote self-control and responsible habits. Choices A, B, and D are incorrect because the paragraph focuses on advocating moderation and self-discipline rather than encouraging overeating, criticizing healthy eating habits, or promoting exercise.

5. What is the meaning of the word respite as used in the first paragraph?

A. Relief
B. Treatment
C. Guardian
D. Specialist

Correct answer: A

Rationale: In this context, 'respite' refers to relief, providing caregivers with temporary rest or a break from their caregiving duties. The word 'respite' is associated with giving caregivers a brief period of relief, not with treatment, guardianship, or specialization. The extract mentions 'respite services' along with caregiver services, indicating that respite is a form of support or relief for caregivers.