What is the default speed limit outside built-up areas (rural roads) unless posted otherwise?

Question: What is the default speed limit outside built-up areas (rural roads) unless posted otherwise?

Answer options:

• 60 km/h
• 70 km/h ✅ 80 km/h
• 90 km/h

Correct answer: 80 km/h

Explanation: Under the Ontario Highway Traffic Act, the statutory default speed limit on highways outside of built-up areas is eighty kilometers per hour when no signs are posted. Options like sixty, seventy, or ninety kilometers per hour are incorrect because they do not represent the legally mandated default rural limit, although they may appear on specifically signed routes. Knowing this default standard is crucial because drivers are expected to comply with it even when signs are missing. For the G1 exam, memorizing the statutory default limits—fifty kilometers per hour inside built-up areas and eighty kilometers per hour outside them—is highly relevant as these two rules are frequently tested.