Ontario G1 Knowledge Test — G1 Practice Question
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Accuracy —
Road Signs
A diamond-shaped sign with a yellow background and black symbols warns a driver of:
Show Answer & Explanation
Correct Answer: B. Dangerous or unusual conditions ahead
Yellow diamond warning signs alert drivers to hazards like curves, merges, slippery surfaces and school crossings. They are advisory — they warn but do not impose a legal speed or stop obligation — yet reducing speed upon seeing one is strongly recommended.
Why the other answers are wrong
- A.A regulatory stop requirementRegulatory signs (stop/yield/speed) are typically rectangular or octagonal, not diamond-shaped.
- C.A temporary construction zoneTemporary-construction signs are also diamond-shaped but use an orange background, not yellow.
- D.Information about nearby servicesInformation signs use rectangles with green, blue or brown backgrounds, not yellow diamonds.