180. When this signal is constantly flashing, how should a driver react?
A. Speed up as soon as possible
B. Pull over and wait
C. Observe the traffic situation around to make sure of safe driving
D. Refrain from passing
Answer：C
Previous question: 179. Which one of the following ways to pass this intersection is correct?
Next question: 181. Upon encountering this traffic signal, how should a driver react?
2026年科目四英文版题库共700题，你可以免费查看前200题，完整版题库请添加微信购买：
The English version of the 2026 subject 4 question bank has a total of 700 questions. You can view the top 200 questions for free. Please add WeChat to purchase the complete version of the question bank.
Subject 4 test questions
- When a motor vehicle turns left at this intersection the driver should change to the left lane in advance by the guide arrow.
- Motor vehicles on this kind of road are only allowed to overtake the vehicle in front from left.
- Mr. Wu drove a large bus with 33 passengers (capacity 22 people). At the spot of 7 kilometers mark by 300 meters on the No 163 County Road, the bus lost control and fell into a ravine. As a result of the accident, 10 people were killed and 21 injured. In accordance with the alcohol test after the accident the blood alcohol content of Mr. Wu was 26 milligram per milliliter. What is the main illegal act committed by Mr. Wu?
- Under such circumstances, the motor vehicle is allowed to overtake.
- What should be done to keep safe when a motor vehicle driver is overtaking in this condition?
- How many kinds of law-breaking acts are displayed in flash 1?
- What should motor vehicle drivers do under the circumstance shown in the flash?
- The leading cause of this accident is that the driver failed to make sure that it was safe to reverse before doing so.
- When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
- The sign on the right warns of a continuous downhill section ahead.
- What is the function of ABS during emergency braking?
- Having driven his truck at 90km/hour on an urban road without road lamps, Mr. Zhou is passing a narrow road using the high-beam and cutting off the way of an oncoming passenger car that runs into the right guardrail as a consequence. Which of the following law-breaking acts did Mr. Zhou commit?
- Motor vehicle drivers may make a U-turn in the broken line area as long as it will not affect the normal traffic flow.
- The driver may not yield when the motor vehicle encounters this situation at the intersection.
- Mr. Peng drove a heavy semi-trailer tractor with 37.7 tons of cargo (capacity 25 tons). When descending a slope on the Daguang Expressway, the tractor had a rear-end collision with Mr. Li¡¯s heavy dump truck (carrying 3.17 cubes of loess and 24 passengers in the container) occupying the emergency lane. As a result of this accident, 16 people were killed and 13 injured. What are the main illegal acts in this case?
- Motor vehicle drivers are allowed to overtake on this road section.