California DMV Permit Test (Class C)Traffic Signs and SignalsMedium
You are driving on a road and approach an intersection. You see a white rectangular sign with a black symbol of a truck with a diagonal line through it. What does this sign indicate?
- ATrucks must use a different route.
- BTrucks should proceed with caution.
- CA truck crossing or entrance is ahead.
- DTrucks are prohibited from entering this road or area.
Show answer & explanationAnswer & explanation
Correct answer: D. Trucks are prohibited from entering this road or area.
A white rectangular sign with a black symbol of a truck and a diagonal red line through it is a regulatory sign indicating a prohibition. The diagonal line means 'NO' or 'PROHIBITED', so this sign means trucks are prohibited from entering the road or area.
Why the other options are wrong
- A. Incorrect; while it implies a different route, the direct meaning is prohibition, not just suggestion.
- B. Incorrect; this is a clear prohibition, not a caution.
- C. Incorrect; a truck crossing sign would be yellow and diamond-shaped, showing a truck symbol without the prohibitory line.
Prohibitory Symbol (Truck)
A white rectangular sign with a black truck symbol and a red diagonal line through it is a regulatory sign indicating that trucks are prohibited from entering or using the road or area beyond the sign.
- Regulatory sign (white rectangle).
- Diagonal line means 'NO' or 'PROHIBITED'.
- Specifically prohibits trucks.
- Drivers of trucks must find an alternative route.
Memory trick: Red slash means 'STOP THAT!'