what is the meaning of the word duration as used in the last paragraph

HESI A2

Reading Comprehension HESI A2 Practice Test

1. What is the meaning of the word duration as used in the last paragraph?

A. Basis
B. Extent
C. Cure
D. Solidity

Correct answer: B

Rationale: The word "duration" in the context of sleep refers to the length of time that children should sleep. It suggests a focus on the amount of sleep necessary for healthy development, making option B the correct choice as it aligns with the emphasis on recommended sleep hours for children.

2. What body of water does The Golden Gate Bridge cross?

A. San Francisco Bay
B. Pacific Ocean
C. Marin Strait
D. Indian Ocean

Correct answer: A

Rationale: The Golden Gate Bridge crosses the entrance to San Francisco Bay, spanning the Golden Gate Strait. It does not cross the Pacific Ocean, Marin Strait, or Indian Ocean directly. The iconic bridge connects the city of San Francisco to Marin County in California. The Pacific Ocean is a vast body of water beyond the Golden Gate entrance, and Marin Strait is not a recognized geographical location. The Indian Ocean is located on a different continent and is not related to the Golden Gate Bridge's location.

3. A reader might infer from this passage that the organization ___________.

A. succeeded in eradicating malaria
B. has always been led by a medical doctor
C. no longer studies communicable diseases
D. changed its name to match its mission

Correct answer: D

Rationale: The passage never says whether or not the CDC succeeded in its original mission (choice A) or whether it continued to be led by doctors (choice B). Inferring either of those things would be a leap unsupported by the text. Choice C is countered by information in the final

4. Why was the roadway of the Golden Gate Bridge so dangerous to build?

A. It was located above a fast-moving river.
B. It had to be perfectly balanced to avoid collapse.
C. The materials used were very unstable.
D. It was built during bad weather.

Correct answer: B

Rationale: The correct answer is B. The passage describes how the road had to be balanced during construction to avoid collapse into the bay. Choice A is incorrect as the Golden Gate Bridge crosses a strait, not a river. Choice C is incorrect as there is no mention of unstable materials. Choice D is incorrect as bad weather is not highlighted as a specific reason for the danger in building the roadway.

5. 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.