What is the meaning of the jagged white solid line?

What Causes Excessive Vehicle Exhaust Emissions?

Excessive vehicle exhaust emissions can be attributed to the following reasons: Abnormal engine operation: The engine may experience issues such as cylinder misfire, spark plug oil leakage, or oil blow-by. When the throttle is increased, the engine runs unevenly and lacks power. Dirty vehicle three major systems: This situation usually occurs when the vehicle is relatively new, but the test results show excessive emissions, or the excess is minor (just a few percent or fractions of a percent). This indicates that the vehicle's exhaust treatment system (including the three-way catalytic converter and oxygen sensor) is not significantly faulty. The cause of excessive emissions may be due to the three major systems (intake system, exhaust system, and fuel system) being excessively dirty. Three-way catalytic converter failure: Three-way catalytic converter failure is the primary cause of excessive vehicle exhaust emissions. The three-way catalytic converter is the most important external purification device installed in the vehicle's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted by the vehicle into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions.

9

2

Share

What Constitutes a Solid Line Violation?

Wheel crossing over a solid line is considered a solid line violation. Solid lines are divided into yellow/white types. During straight driving, vehicles must not cross these lines—whether they are solid, dashed, yellow, or white—and must stay within their lane. This is a safety requirement aimed at preventing traffic accidents. White dashed lines indicate lane changes are permitted, while white solid lines prohibit lane changes. A single yellow line allows crossing for overtaking, whereas double yellow lines strictly forbid crossing for overtaking. Solid Lines: A single solid or dashed line indicates a unidirectional single-lane road, while double solid lines indicate a unidirectional road with two or more lanes. Identifying Lane Solid Lines: Generally, roads marked with a single solid line are not very wide. If two vehicles attempt to pass side by side, it becomes crowded. A white solid line is often added on the right to separate motor vehicle lanes from non-motorized vehicle lanes, primarily to warn vehicles against crossing the line for overtaking. Roads marked with double yellow solid lines are typically wider, usually featuring at least two lanes per direction plus a white solid line separating motorized and non-motorized lanes. The wider road makes it harder for drivers to distinguish lanes when turning or passing intersections. Using a single yellow line in such areas could lead to wrong lane usage, whereas double yellow lines make lane identification much clearer.

6

2

Share

Is It Advisable to Buy a Car That Has Been in an Accident?

The decision depends on the specific condition of the car. It is not recommended to purchase a car that has been in an accident where the A/B/C pillars were damaged, as these are structural components. However, if the car only has minor 'scratches and dents' and does not affect driving safety or legal transfer of ownership, it may still be considered for purchase. Overall body alignment: The car body is like the human skeleton. If the skeleton is bent or has issues, a person will feel uncomfortable when standing or sitting, and their posture will appear unnatural and unattractive. The same applies to cars. Proper body alignment is crucial not only for the vehicle's appearance but also for its load-bearing capacity and the safety of its occupants. Repair and replacement of vehicle components: The engine is the heart of the car. It is essential to determine whether the engine's performance after repair will significantly impact the vehicle's speed and stability. The battery, which is akin to the car's blood, should also be carefully assessed for damage and replaced promptly if necessary. Additionally, the interior damage should be thoroughly inspected. For example, check whether the airbags deployed during the collision. If they did, the dashboard and related components must be replaced.

4

Share

Can the Subject 1 Test Only Be Taken Once?

Subject 1 is not limited to only one attempt, as there are no restrictions on the number of times the Subject 1 test can be taken, and it does not count within the three-year validity period. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," it is clearly stipulated that the Subject 1 test can be taken twice on the same day. If the first attempt is unsuccessful, a free retake is allowed for the second attempt. If the second attempt also fails, the Subject 1 test for that day is terminated, and the candidate can only schedule another test after ten days. Subject 1, also known as the Subject 1 theory test or driver theory test, is part of the motor vehicle driving license examination. The test content includes theoretical foundations of driving, road safety laws and regulations, local regulations, and other related knowledge. The test is conducted on a computer, with a time limit of 45 minutes. The passing score for the Subject 1 driving test is 90 points. The test consists of 100 questions, divided into single-choice questions and true/false questions, with each question worth 1 point, totaling 100 points. If 11 questions are answered incorrectly during the test, the system will automatically submit the test and end the session. Subject 1 test content includes: driving license and motor vehicle management regulations; road traffic conditions and regulations; road traffic safety violations and penalties; road traffic accident handling regulations; basic knowledge of motor vehicles; local regulations; knowledge of braking systems and safety devices for large and medium-sized passenger and freight vehicles; specialized knowledge for wheeled self-propelled machinery, trams, and trolleybuses. Subject 1 test precautions: Candidates should pay attention to their attire during the test—no slippers are allowed, and electronic devices and bags are prohibited in the examination room. Bring your ID card and queue to enter the waiting hall. Observe the precautions and procedures displayed on the large screen, and store personal belongings in a locker before entering the examination room. Upon entering, candidates will be assigned a seat at the identity verification station. After finding their seat, they can begin the test. Ensure the camera is aligned properly and adhere to test discipline. If the first attempt is unsuccessful, a same-day retake is allowed. If the retake also fails, a fee must be paid to reschedule. After the test, queue to collect the score report and sign it. Failure to sign will render the test invalid. Precautions: There is no limit to the number of attempts for Subject 1, but Subjects 2 and 3 are limited to five attempts each. If all five attempts for Subjects 2 or 3 are unsuccessful, the previously passed road driving skill test scores remain valid. The driving test consists of three subjects: Subject 1, Subject 2, and Subject 3. Subject 1 refers to the examination on road traffic safety laws, regulations, and related knowledge. Subject 2 refers to the field driving skills test. Subject 3 is divided into two parts: road driving skills and the safe and civilized driving common sense test. The safe and civilized driving common sense test is conducted after Subject 3, so it is commonly referred to as Subject 4. However, in official terms (i.e., the Ministry of Public Security Order No. 123), there is no such thing as Subject 4.

18

1

Share

Can the passenger smoke on the highway?

Passengers can smoke. The following are specific introductions about the role of the passenger: 1. Navigation: While driving, the driver cannot check the map, and this task can be taken over by the passenger. Sometimes the navigation system may make mistakes, and the passenger's role in navigation becomes crucial. 2. Observing road conditions: The driver cannot look around to find the destination while driving, but the passenger can. The passenger can provide information about the current road and address number, etc. 3. Relieving the driver's fatigue: During long drives, especially on highways lasting several hours, if the passenger falls asleep immediately, it will accelerate the driver's fatigue. Conversely, maintaining conversation with the driver can help reduce the driver's fatigue.

6

0

Share

How many points are deducted for speeding at 140 km/h on the highway?

Speeding at 140 km/h on the highway results in a deduction of 3 points. Here are the specific details about highway speeding: 1. Regulations: According to the "Road Traffic Safety Law," the maximum speed for small passenger vehicles on highways must not exceed 120 km/h, other motor vehicles must not exceed 100 km/h, and motorcycles must not exceed 80 km/h. 2. How long it takes to detect speeding: Traffic violations for speeding on the highway can typically be queried online within 3 to 7 days, with a maximum delay of no more than 13 working days. However, if the speeding violation is not on the highway but in a different location, it may take about 2 to 3 weeks to be recorded and queried.

8

2

Share

What is the meaning of the jagged white solid line?

What Causes Excessive Vehicle Exhaust Emissions?

What Constitutes a Solid Line Violation?

Is It Advisable to Buy a Car That Has Been in an Accident?

Can the Subject 1 Test Only Be Taken Once?

Can the passenger smoke on the highway?

How many points are deducted for speeding at 140 km/h on the highway?

Are Hybrid Vehicles Exempt from Purchase Tax?

Why Do Touch-Up Pens Corrode the Original Car Paint?

I went straight in a variable left-turn lane, will there be any consequences?

How often should a new car be waxed?