Question

Why a thik chain hangs from a petrol or a disele tanker and it is in contanct with ground when the tanker is moving?

Answer 1

Have you noticed a chain dragging along the ground near the petrol tanker specially in huge vehicles. ... Such spark can be dangerous in case of a petrol tanker. That is why tankers often have a metal chain dragging along the ground so that charge produced leaks to the ground through chain.

Answer 2

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Have you noticed a chain dragging along the ground near the petrol tanker specially in huge vehicles. Such spark can be dangerous in case of a petrol tanker. That is why tankers often have a metal chain dragging along the ground so that charge produced leaks to the ground through chain.