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What is the maximum allowed height from the underside of the tire to the top of a vehicle?

  1. 8 feet

  2. 10 feet

  3. 13 feet, 6 inches

  4. 15 feet

The correct answer is: 13 feet, 6 inches

The maximum allowed height from the underside of the tire to the top of a vehicle is 13 feet, 6 inches. This height limit is set to ensure the safety of the vehicle on the road and to prevent any obstructions or hazards due to overheight vehicles. It is crucial for commercial drivers to be aware of this height restriction to avoid any violations or accidents while operating their vehicles. Option A (8 feet), Option B (10 feet), and Option D (15 feet) do not represent the correct maximum allowed height specified for vehicles in Illinois. These options fall outside the regulatory limit, making them incorrect choices in this context.