The answer options
- When there are less than two vehicles ahead of you
- When directed to by traffic signs
- When waved on by another road user
- Only when your exit road is clearCorrect
Why that is the answer
You must not enter a box junction unless your exit road is clear, as these yellow criss-cross markings keep the intersection free for other traffic. The only exception is when turning right, provided oncoming traffic is the only thing stopping you. Never enter just because other drivers wave you through or because there are few vehicles ahead; you must check for yourself that there is space on the far side.
How this comes up in the real test
Questions from rules of the road appear throughout the 50-question multiple-choice section, and the wording changes between versions. Learn the rule rather than the sentence: the DVSA can ask the same point from the opposite direction, and a memorised answer falls over the moment the phrasing moves.
The pass mark is 43 out of 50, so seven wrong answers is your entire margin. If a whole category is shaky, run the topic practice below until you are getting every question right for the right reason, then go back to full mocks under the clock.
More rules of the road questions
- A single carriageway road has this sign. What’s the maximum permitted speed for a car towing a trailer?
- At a roundabout, how should you signal that you're going straight ahead?
- At an un-marked crossroads, who has priority?
- How else can you indicate to other drivers besides using direction indicators?
- How far are you allowed to reverse?
- How should you park at night on a road with a 40mph speed limit?