Which of the following traffic signs alerts that another road is about to merge with the roadway in which you are driving?

- Correct answer: 124
- 145
- 620
- 725
Why this is the answer
The correct answer in the official bank: 124
Traffic sign 124 is a red warning triangle with a main line and a diagonal line touching it, meaning another road merges into the road you are driving on. When you see it, expect vehicles joining the traffic and adjust your speed and distance. Sign 145 warns of two-way traffic, and signs 307 and 620 are not warning signs.