Ontario G1 Test Coach
Road signsQuestion 40 of 328
A yellow diamond with a black up arrow, a down arrow and the number 3.9m

Why is this sign important to drivers of tall vehicles?

  1. It shows how long the bridge is
  2. It shows the weight limit of the bridge
  3. It shows how much room there is under the bridge
  4. It shows the speed limit under the bridge
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Correct answer: It shows how much room there is under the bridge

Check the height of your vehicle against the number on the sign.

Source: The Official MTO Driver's Handbook (Ontario Ministry of Transportation), Signs, Here are some common warning signs:

Practice road signs

Questions last reviewed: 18 October 2026