USAREUR Practice Exam

What must a driver do when approaching a round blue sign with a white number 30 on it?

1. Stay off the road if speed is less than 30 kph

2. Not exceed 30 kph

3. Not drive at less than 30 kph if conditions permit

4. Both A and C

The correct answer is: Both A and C

The presence of a round blue sign featuring a white number 30 indicates a regulation related to speed. Specifically, while blue signs usually indicate informational or regulatory messages related to vehicle operation, in this case, the number reflects a minimum speed requirement. The correct understanding is that drivers must not drive at less than 30 kilometers per hour if conditions allow, emphasizing the need to maintain a minimum speed for safety and traffic flow. Therefore, option D is valid because it captures both the importance of maintaining a minimum speed to ensure efficient traffic movement and the stipulation that if conditions permit, slower driving under 30 kph should be avoided. This aligns with traffic safety norms where minimum speed limits are established to prevent accidents or disruptions in smoother travel for all vehicles on the road.