Can you stop or park your vehicle over a fire hydrant if someone stays with the vehicle who can move it?
The correct answer is A
Correct. If you can move the vehicle immediately it's OK to park over a hydrant
You can park your vehicle up to 500mm (50cm) from a fire hydrant as long as there are no other parking restrictions. However, if you want to park closer than that, or over the hydrant, then someone who can move the vehicle will have to stay with it.
A fire hydrant on the road is marked by a 1.2m diameter yellow circle which contains the rectangular hydrant lid. There might also be a yellow isoceles triangle pointing to the hydrant.
You will also find hydrants on footpaths and verges.
Hydrants are where the fire service can get water from the mains supply. It helps when fighting a larger fire as there's only a limited amount of water a fire engine can carry.