Why Do Fuel Tanker Trucks Have Chains Hanging From the Back? The Hidden Safety Feature Explained

You may have noticed fuel tanker trucks with a metal chain hanging from the back and wondered what it is for. It might look like a simple piece of equipment, but the chain is connected to an important safety principle: controlling static electricity around flammable fuel.

As a tanker moves along the road, friction between the vehicle, tires, air, and continue reading …