A short chain is usually attached to the rear side of petro tanker trailing behind it to ensure that the ____________
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- A Charges generated by friction in the tanker are conducted to the earth
- B Chain vibrates in resonance with the tanker’s engine
- C Heat generated by friction in the engine is conducted to the earth
- D Petrol tanker is balanced on the road
- E Tanker does not exceed a certain speed limit
Correct Answer: Option A
Explanation:
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