why the iron chains were hanged at the back or front of the trucks earlier whi

why the iron chains were hanged at the back or front of the
trucks earlier which were touching the earth?

Question Posted / jyotsna

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why the iron chains were hanged at the back or front of the trucks earlier which were touching the..

Answer / pradeep pandey

To discharge the static, thereby reducing the risk of explosion by inflammable stuff like cylinders, oxygen tanks, gasoline products etc.
by eliminating static,it will also improve the radio reception on the vehicle.

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why the iron chains were hanged at the back or front of the trucks earlier which were touching the..

Answer / k.prakashchandra

They are of no use if not touching the earth.Probably they
were found to be noisy and causing more fuel consumption

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