2024 · Q26
Which one of the following is the most appropriate reason for aircraft being equipped with conducting tyres?
General KnowledgePhysics
- AThey can transfer the charge accumulated on their surfaces during lightning
- BThey can transfer the charge accumulated on their surfaces being rubbed by air particles
- CThey can transfer the charge accumulated on their surfaces due to inflight operation of several gadgets
- DFor preventing sparks while they land on the ground
Explanation
Aircraft tyres are made slightly conducting so that static charge built up during flight and landing can flow safely to the ground. On touchdown, an insulated tyre would let charge accumulate and discharge as a spark, which could ignite fuel vapours around the aircraft. The conducting path bleeds this charge off at the moment of landing. Hence option D is correct.