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Which of the following statement is not correct about loaded spiral spring?

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Question 42
A
The extension is proportional to the load applied, provided the elastic limite is not exceeded
B
If the elsatic limit is not exceeded, the contraction is proportional to the load removed.
C
Up to the yield limit, extension is no longer proportional to the applied load.
D
Beyond the elsatic limit, extension is no longer proportional to the applied load.
E
If the string regains its shape or form after deformation, it is said to be elastic.
Explanation

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Correct option: C

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