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Answered

Which of the following statements best describes preload?

A. Preload must be greater than the external forces to maintain its strength.
B. A bolt that has preload tension will loosen under stress and fail.
C. Preload is less important than the ultimate strength of the bolt.



Answer :

GinnyAnswer

Final answer:

Preload is the initial tension in a spring or structure before external forces are applied. Understanding preload is crucial for analyzing material behavior under stress, including in the cardiovascular system.


Explanation:

Preload refers to the initial tension applied to a spring or structure before it experiences any external forces. It is essential for understanding the behavior of materials under stress. In the context of preload in the cardiovascular system, it reflects the volume of blood in the heart at the end of diastole.


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