Road signs

A flashing red light indicates that you must come to a complete stop and yield the right-of-way before proceeding, exactly like a stop sign. Treating it merely as a caution signal is incorrect, as a flashing yellow light is used for caution and does not require a full stop.

A solid yellow line on your side of the center marking indicates a no-passing zone, meaning you cannot cross it to overtake other vehicles. Believing that passing is allowed is dangerous and incorrect, as broken yellow lines are used to indicate where passing is permitted.

A red octagonal sign is the universal shape and color indicating a complete stop is required at an intersection. A diagram for this topic isn't available yet — the worked example below walks the same reasoning step by step.

• !Option A is incorrect because yield signs are triangular, while option D is incorrect because road closure signs are typically rectangular and orange or white.
• !Treating it merely as a caution signal is incorrect, as a flashing yellow light is used for caution and does not require a full stop.
• !Believing that passing is allowed is dangerous and incorrect, as broken yellow lines are used to indicate where passing is permitted.
• !Option A is incorrect because yield signs are always triangular, pointing downward, rather than pennant-shaped.
• !Option A is incorrect because lane changing and passing are only allowed when lane markings are broken, not solid.

Answer each from memory — you'll see instantly whether you're right and why.

Run a focused 10-question mini-mock on Road signs and see it stick.