During a tank vehicle inspection, why should you check that the manhole covers and vents are properly secured?

Pick an answer

1. Manhole covers only matter when the vehicle is parked overnight, not while it's actually moving down the road
2. It mainly protects the paint finish around the opening from scratches
3. It only affects fuel economy
4. A loose or open cover can allow product to spill or spray out while driving

Correct!

Not quite. The correct answer is highlighted.