Answers

2014-04-06T12:41:56+05:30
When the vehicle is in motion,due to friction in air,the body of the vehicle gets charged.if accumulated,charge becomes excessive,sparking May occur and inflammable materials may catch fire.therefore metallic chains touching the ground are introduced so that the charge quickly leaks to the earth.hence the danger of fire is avoided...
so,vehicles carrying inflammable materials usually have metallic ropes touching the ground during motion.....
ok....??
4 4 4