Illinois Driving Permit Practice Test

Under what condition is it legal to pass a vehicle on the right?

1. When the vehicle ahead is making a left turn

2. Whenever you feel like it

3. In all situations

4. When there is a solid line

The correct answer is: When the vehicle ahead is making a left turn

Passing a vehicle on the right is legal when the vehicle ahead is making a left turn because this situation creates an opportunity for a safe maneuver. When a vehicle is turning left, it leaves the right side of the road clear, allowing another driver to pass safely without conflicting with the vehicle that is turning. This action is generally acceptable on multi-lane roads where there are designated lanes for through traffic, ensuring that the passing driver can maintain a safe distance and speed relative to both the turning vehicle and any surrounding traffic. Other options suggest conditions that do not align with traffic laws. For instance, passing whenever one feels like it or in all situations disregards the need for safe and responsible driving and does not take into account road markings and traffic rules designed to protect all road users. Passing on the right when there is a solid line is also prohibited, as this indicates that it is unsafe to change lanes or pass other vehicles.