In the early stages of obtaining a driver's license, subject 1 is an introductory level for theoretical learning, which is very important for every driver. It covers not only the basics of traffic laws and driving skills, but also a wide variety of traffic signs and symbols. Mastering the meaning and function of these signs is an indispensable preparation for every motorist before hitting the road. However, as traffic management continues to improve, so do traffic signs, which means that learning Subject 1 alone is not enough.

In cities, most of the traffic signs we see every day are simple and straightforward, such as no traffic, no honking, speed limit, etc. But on the highway, it's a very different story. Traffic signs here are more complex and contain many less popular signs, which many drivers are not familiar with, which is one of the reasons for their demerit points. Therefore, for novice drivers, it is undoubtedly a safer choice to get on the highway accompanied by an experienced driver.

Recently, a motorist spotted a sign on the highway that resembled a "question mark bulb", which sparked his curiosity. Upon inquiry, he learned that the sign was not unusual, but most people did not know what it meant. The main function of this sign is to remind drivers to pay attention to the use of high beams, that is, to turn on the high beams when approaching the tunnel and turn them off in time when leaving the tunnel.

It is understood that the "question mark bulb" sign usually appears a few hundred meters away from the tunnel, and its original design is to ensure the traffic safety of motorists. When motorists see this sign, they should be prepared to enter the tunnel and turn their high beams on or off as needed.

However, many motorists are often overwhelmed by the meaning of this sign because they do not understand it, and even get demerit points for it. So, how should drivers respond to this sign? First of all, when a motorist sees a "question mark bulb" sign before approaching a tunnel, they should immediately turn on their high beams to better illuminate the road ahead. Secondly, when a driver leaves the tunnel and sees the sign again, the high beams should be turned off quickly to avoid disturbing other vehicles.

Although the "Question Mark Bulb" sign is not common on highways, motorists should still be vigilant at all times to avoid unnecessary demerit points and fines for not understanding what it means. At the same time, the relevant departments should also strengthen the publicity and popularization of traffic signs to improve the traffic safety awareness of drivers.