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In an Izod test after the pendulum is released from a certain height, it hits the material at the __________ point of it’s path.

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In an Izod test after the pendulum is released from a certain height, it hits the material at the __________ point of it’s path.

(a) lowest

(b) opposite

(c) highest

(d) sideways

I have been asked this question in an interview for job.

This intriguing question comes from Impact Test topic in chapter Testing Aircraft Materials of Aerospace Materials & Processes

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The correct answer is (a) lowest

The explanation: In an Izod test, the material is first notched. Then it is clamped in heavy jaws, where the notch level is with the top and facing the pendulum. After the pendulum is released from a certain height, it hits the material at the lowest point of its path.

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