This sign means
- obstruction, keep right ✓
- obstruction, keep left
- the road curves to the right
- one way street; travel only on the right
Answer: A. obstruction, keep right
This sign warns that there is an obstruction ahead and tells you to pass it by keeping to the right.
Why this is the answer
The handbook groups this with the object markers that are mounted on obstructions, and it lists the obstruction sign as telling drivers to keep right or left. When the sign points you to the right, you go around the obstruction on its right-hand side rather than steering toward it. The picture itself is not reproduced here, so the reasoning rests on the handbook's description of obstruction markers and the answer key's statement that this one directs traffic to the right.
Why the other answers are wrong
- B. obstruction, keep left — Keeping left is the other version of the obstruction sign, so it does not match a sign that sends traffic to the right.
- C. the road curves to the right — A road that curves is a different warning about the shape of the road, while this sign is about an obstruction you must pass on one side.
- D. one way street; travel only on the right — The handbook ties this marker to obstructions on the roadway, not to one-way travel, so it does not mean travel only on the right.
Remember it
On an obstruction marker, treat the side the sign sends you to as the side you pass on, not the side you head toward.