HESI A2
HESI A2 Reading Comprehension Practice Test
1. What role does water vapor play in the Water Cycle, as described in the passage?
- A. Water vapor is unnecessary in the water cycle.
- B. Water vapor plays a key role in precipitation.
- C. Water vapor is harmful to the environment.
- D. Water vapor cools the Earth's surface.
Correct answer: B
Rationale: The correct answer is B: 'Water vapor plays a key role in precipitation.' The passage clearly outlines the importance of water vapor in the water cycle. It explains that water vapor returns to the air from surface water and plants, and condenses back into droplets of liquid, forming clouds. These clouds eventually lead to precipitation like rain, snow, sleet, or hail. Choice A is incorrect as water vapor is crucial in the water cycle. Choice C is also incorrect as there is no mention of water vapor being harmful in the passage. Choice D is incorrect as the passage does not state that water vapor cools the Earth's surface; instead, it highlights its role in the formation of precipitation.
2. A patient's weight is measured as 75 kilograms. What is their weight in pounds?
- A. 132 pounds
- B. 150 pounds
- C. 110 pounds
- D. 85 pounds
Correct answer: B
Rationale: Rationale: To convert kilograms to pounds, you can use the conversion factor 1 kilogram is approximately equal to 2.20462 pounds. Therefore, to convert 75 kilograms to pounds: 75 kilograms * 2.20462 pounds/kilogram ≈ 165.3475 pounds Rounded to the nearest whole number, the patient's weight of 75 kilograms is approximately 165 pounds. Among the given options, the closest weight in pounds to 165 is 150 pounds (option B).
3. Why did Macmillan add iron rims to the tires of his bicycle?
- A. Increase the weight of the bicycle.
- B. Enhance the durability of the tires.
- C. Reduce the bumpiness of the ride.
- D. Decrease the level of fatigue during the ride.
Correct answer: B
Rationale: Macmillan added iron rims to his bicycle tires to enhance their durability and make them last longer. This innovation aimed to prevent the tires from getting worn down quickly. Adding weight to the bicycle (Choice A) was not the purpose of adding iron rims. While adding iron rims could potentially reduce the bumpiness of the ride (Choice C) by providing more stability, the main objective was to improve tire longevity. Similarly, reducing the level of fatigue during the ride (Choice D) was not the primary reason for adding iron rims.
4. What word is best to substitute for the underlined words in the following sentence? The staff sergeant and I reviewed the enlisted men’s records.
- A. Us
- B. We
- C. They
- D. He
Correct answer: B
Rationale: In the sentence, "The staff sergeant and I reviewed the enlisted men’s records," the pronoun "I" refers to the subject of the sentence, which is the speaker. When combining the staff sergeant and the speaker "I," the correct pronoun to use is "we," which is the plural form of "I." Therefore, the word "We" is best to substitute for the underlined words in the sentence. Choice A, "Us," is incorrect as it is an object pronoun and does not match the subject position in the sentence. Choice C, "They," is also incorrect as it refers to a third-party group, not including the speaker and the staff sergeant. Choice D, "He," is incorrect as it does not include both the staff sergeant and the speaker in the pronoun substitution.
5. Why can animal cells use a contractile ring but plant cells cannot?
- A. Plant cells can use both methods to divide
- B. Animal cells divide faster, requiring them to pinch apart
- C. Plant cells are too rigid to use a contractile ring
- D. N/A
Correct answer: C
Rationale: Plant cells have a rigid cell wall surrounding them, which prevents them from using a contractile ring for cell division. The rigid cell wall requires plant cells to form a cell plate during cell division instead of pinching apart like animal cells with a contractile ring. Choice A is incorrect because plant cells cannot use a contractile ring due to their rigid cell wall. Choice B is incorrect as the speed of cell division is not the primary reason for the difference in cell division mechanisms between plant and animal cells. Choice D is not applicable as plant cells indeed have a specific limitation in using a contractile ring for cell division.
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