Problems with static electricity
1 mark · NormalWhich one of these actions helps prevent fires during the transfer of petrol at petrol stations?
- A.Using plastic fuel hoses to avoid shocks
- B.Switching off the pump before filling
- C.Earthing the fuel tanker
- D.Wearing rubber gloves
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Show answer
Correct option: Earthing the fuel tanker
Common mistakes: Choosing plastic hoses or gloves (these insulate but do not remove charge).
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Marking points
A1 · 1 mark · Correct option: Earthing the fuel tanker.
Worked solution
Earthing allows any static charge to be removed safely from the fuel tanker, preventing dangerous sparks.