If the thickness of the steel plates that are riveted is 9mm, what will be the diameter of the rivets used?

If the thickness of the steel plates that are riveted is 9mm, what will be the diameter of the rivets used? Correct Answer 18mm

When the thickness of the plates that are riveted are given, to find the diameter of the rivets, we need to use Unwin’s formula, which says that the diameter of the rivets used will be 6 times the square root of the thickness of the given plates.
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