What is the purpose of the openings built into a baffle, rather than making it a solid wall across the tank?

Pick an answer

1. The openings exist purely to make cleaning easier, with no effect on surge or how the liquid moves inside
2. The openings are only there to reduce the tank's weight
3. The openings let some liquid and pressure pass through gradually instead of slamming against a solid barrier
4. The openings let air escape during driving

Correct!

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