In a factory in Malaysia, fuel is pumped through plastic pipes into large storage tanks. A bonding wire connects the metal pipe fittings to the ground.

What is the purpose of the bonding wire?

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Question

In a factory in Malaysia, fuel is pumped through plastic pipes into large storage tanks. A bonding wire connects the metal pipe fittings to the ground.

What is the purpose of the bonding wire?

Accepted Answer

to prevent the build-up of static charge — Award 1 mark for recognising that earthing prevents dangerous build-up of static charge that could cause a spark and ignite flammable fuel. A is incorrect because earthing does not affect flow rate. C is incorrect because earthing does not reduce friction. D is incorrect because earthing decreases resistance by providing a conducting path.

Answer

to increase the electrical resistance of the system

Answer

to increase the rate of fuel flow

Answer

to prevent the build-up of static charge

Answer

to reduce heat generated by friction

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