An operator may not stop, stand, or park a vehicle within how many feet of a fire hydrant?

The correct answer is that an operator may not stop, stand, or park a vehicle within 15 feet of a fire hydrant. This regulation is in place to ensure that fire trucks can access the hydrants quickly during emergencies. Parking too close to a fire hydrant can obstruct fire crews from connecting hoses to the hydrant and accessing water efficiently when needed.

By maintaining this distance, it allows for both safety and effective response in fire-related situations, making it a critical regulation for public safety. The other distances provided, while they may seem reasonable, do not align with standard traffic regulations typically established in municipal codes.