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Question

Difficulty: EasyParaphrased Fact Recognition

Read the following passage:

Automotive cooling systems rely on spring-loaded radiator caps to elevate the boiling threshold of engine coolant. When engine operating temperatures rise, the cap's internal valve remains tightly sealed, increasing internal pressure to approximately 15 pounds per square inch above atmospheric levels. This pressure increase allows the coolant to absorb thermal energy beyond 250°F without converting into steam, thereby protecting the engine from thermal damage under heavy operating loads.

According to the passage, the radiator cap prevents coolant from vaporizing at elevated temperatures by maintaining increased internal pressure.

Answer: Answer

Answer

True
The passage explicitly explains that the radiator cap keeps the system sealed to increase internal pressure, which enables the coolant to operate above 250°F without converting into steam. The statement accurately restates this factual detail using the synonymous phrase 'prevents coolant from vaporizing.'

Step-by-Step Solution

1
Identify the key claim in the statement regarding how the radiator cap prevents coolant vaporization.
The statement asserts that the cap prevents the liquid from turning to vapor at high temperatures through elevated pressure.
Isolating the core assertion establishes the exact relationship to verify in the text.
2
Locate the corresponding factual detail within the passage.
The text states that 'increasing internal pressure' allows coolant to absorb heat 'without converting into steam.'
Direct textual retrieval identifies the author's stated cause-and-effect mechanism.
3
Determine if the statement's phrasing accurately paraphrases the passage detail.
'Prevents coolant from vaporizing' is a direct synonym for 'without converting into steam', and 'maintaining increased internal pressure' matches 'increasing internal pressure.'
Confirming semantic equivalence verifies that the factual assertion is strictly supported by the text.

Key Concept

Paraphrased Fact Recognition
Estimated Time:45s
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Paraphrased Fact Recognition

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