Question

Why oil tankers have metal chains that drag along the road

Answer 1

Answer:

To explain:

Oil tankers have metal chains that drag along the road.

Explanation:

First of all, remember that oil tankers contain oil, which is inflammable. A slightest flick of fire or electricity can cause excessive fire and bursting of the track.

Now, when any flick of electricity is caused due to Friction of oil against the wall of the storage tank ,

the electrical charges are passed down along the metal rod to the ground and earthened.

This prevents fire or bursting or any accident.

Answer 2

Question :-----

• why oil tankers have metal chains that drag along the road ??

Explaination :-----

★ Movement of vehicle on road produces electric charges and hence sparking due to rubbing of tyres on road which is very dangerous since petrol is very inflammable.

★ Metal chains that drag along the road helps in absorbing these dangerous electric charges produced by vehicle's tyres.

(Hope it Helps you)