As you turn right, what is the most dangerous point in the turn?
- When your vehicle crosses the centre line of the street you are entering
- If you partially enter the left lane of the street you are turning from
- When you have completed the turn
- When the tractor has made the turn but the trailer has not ✓
Answer: D. When the tractor has made the turn but the trailer has not
The most dangerous point in a right turn is when the tractor has made the turn but the trailer has not.
Why this is the answer
The handbook names this exact moment as the riskiest part of a turn. Once the tractor swings through, the right rear-view mirror turns with it and you can barely see anything useful in it, so checking for smaller vehicles, motorcycles, cyclists and pedestrians on your right becomes much harder. That is why you keep the rear of your vehicle close to the curb and move only when you are sure the turn can be made safely.
Why the other answers are wrong
- A. When your vehicle crosses the centre line of the street you are entering — Crossing the centre line of the street you are entering is not identified as the worst point; the passage only warns you to watch for oncoming vehicles and give them room if you must cross into the oncoming lane.
- B. If you partially enter the left lane of the street you are turning from — Swinging wide into another lane is described as something you may need to do in narrow streets, not as the most dangerous point of the turn.
- C. When you have completed the turn — The passage points to a moment during the turn, not the end of it, as the greatest danger.
Remember it
When the tractor is around and the trailer is still coming, your right mirror stops helping you, so look twice on that right side.