HS code-based risk profiling for exporters

List of the catalogue of this article:

• 1, How many hours can the car run at most???
• 2, What is the reason for the strong shaking when the car is driving
• 3 、Is it a fault to drive a car with noise
• 4,HS code-based risk profiling for exporters Is the moving car sports?
• 5, Why high-speed cars are prone to flat tires

How many hours can the car run at most???

The driver is not allowed to drive continuously for more than 4 hours. The driver is not allowed to drive continuously for more than 4 hours. After driving the vehicle for 4 hours, the owner needs to stop the vehicle for repair. If it is driving on the highway, the owner needs to go to the service area to rest to avoid fatigue driving.

The driver shall not drive continuously for more than 4 hours. Driving a motor vehicle continuously for more than 4 hours without stopping and resting is considered fatigue driving, and there will be corresponding penalties.

Article 62 of the Regulations on the Implementation of the Road Traffic Safety Law stipulates that driving a motor vehicle for more than 4 hours continuously shall stop and rest, and the parking break shall not be less than 20 minutes.

Generally speaking, when the car runs continuously for about four hours, all parts of the vehicle itself will be in a state of high load. At this time, it is best to cool the vehicle and rest, which can protect the vehicle well and extend the service life of the vehicle.

So many repairmans say that if you drive for more than 12 hours or 1,000 kilometers in a row, the car will not be able to stand up. Considering different road conditions, climates and the rationality of using the car, it is reasonable to rest every four hours even if your car has the best performance. Not only do people get a rest, but the use of cars is also more reasonable.

In addition to the continuous operation of the engine for more than 1,000 hours and the overall test of the chassis and other parts, this test will last for one and a half months. Therefore, this procedure is very strict for the whole vehicle from testing to delivery. How many hours can a car drive continuously at most? Excessive use of cars is very harmful.

What is the reason for the strong shaking when the car is driving

1. (1) The ball head of the steering machine is excessively worn: because it is an activity, it will wear out after a long time. After the problem occurs, there will be a subtle angle of inaccuracy when steering, so there will be tire shaking and fuzzy steering at high speed; (2) The fixed rubber bushing wear of the steering machine: this problem is rare and easy to repair.

2. The main reason for idling jitter: serious engine carbon accumulation: cars always have the problem of carbon accumulation, including cylinder carbonization, throttle valve carbonization, spark plug carbonization, intake carbonization, etc.

3. The reasons why the car body shakes at high speed are as follows: mainly abnormal tire pressure or serious tire wear. If the tire pressure is too high or too low and the difference in tire pressure between the four tires is too big, causing the body to shake when driving at high speed.Under normal circumstances, the front tire pressure is usually 3bar, and the rear tire pressure is about 4bar.

4. If the body shakes when driving, if the body shakes slightly when driving, the body shakes or shifts. This is usually a fault caused by tires. First of all, it may be that the tire balance is not good, and the owner needs to do a four-wheel positioning and dynamic balance as soon as possible. If the vehicle does not run, just do the tire dynamic balance.

5. Most of the vehicle's jitter when driving is related to the transmission system, the most basic of which is the problem with the tire. If the owner suspects that the vehicle shakes while driving because of the tire, the easiest way is to touch the tire tread with your hand. If the tread is jagged, it means that the tire has aged and deformed.

6. (1) When the car collides and scratches hard objects, such as road teeth, stones, etc.

Is it a fault to drive a car with noise

The engine sound is very loud when driving a car, which may be mainly due to the following reasons: excessive carbon accumulation in the engine. During the use of the vehicle, slight carbon accumulation will not affect the use; moderate carbon accumulation will increase fuel consumption and reduce power; heavy carbon accumulation will lead to vehicle shaking, lack of fire, loud noise, weakened power and sharp increase in fuel consumption.

First of all, the vehicle malfunctions. Vehicle failure is the main reason for the louder noise of the vehicle. If we find that the noise of a vehicle has increased significantly when driving a position, we must go to the 4S store in time for inspection and handling, otherwise it may cause more serious consequences; secondly, the vehicle is overtimed and not maintained.

If there is a buzzing sound during the driving process of the vehicle, it is likely to be an engine failure. The peer performance is that there is a buzzing noise when accelerating, and the falling window glass is louder. In this case, it is recommended to check the opening of the electronic throttle valve first. If the opening is large, it is necessary to clean the throttle valve and then check the use of the air filter. Change or clean the situation if.

Is the moving car sports?

This is wrong. The movement is relative, that is to say, the movement state of the car is moving or still. There must be a reference. Compared with the people in the car, the car is stationary.

Yes, usually, cars move forward while driving. This is determined by the power of the engine and the direction of rotation of the drive wheel.When the driver steps on the accelerator, the engine generates power, transmitting power to the driving wheel to make it rotate, thus pushing the car forward.

The wheels of a moving car are rotating, so it is a rotation phenomenon. When the wheels reach a certain speed, our eyes can no longer see the rims clearly. Wheels are composed of rims and tires, and the tires are installed on the rims.

Why high-speed cars are prone to flat tires

1. The reasons why high-speed cars are prone to flat tires are: insufficient tire inflation, brake pad friction and heat. Before driving at high speed, some vehicle tires are insufficiently inflated, resulting in long-term friction and heating with the ground and causing flat tires. Brake pads will also cause flat tires due to friction and heating during driving.When the tire temperature is too high, you can park the car in the shade to cool down.

2. High-speed cars are prone to flat tires due to low tire pressure, excessive tire inflation, improper tire installation and other reasons.

3. High-speed cars are prone to flat tires may be due to speeding, poor road conditions or tire pressure that does not meet safety requirements.

4. Cause local delamination of the fetus and intensification of tire wear. In this case, if the car is driving at high speed on the highway again, the above reaction of the tire will be accelerated, and a flat tire is likely to occur.

5. Tire pressure does not meet the safety requirements, resulting in flat tires. In highway transportation, there are two main situations where the tire pressure does not meet the safety requirements. One is that the tire pressure of freight cars is too high, and the other is that the tire pressure of small cars is too low.Both situations are easy to cause flat tires in moving cars.

6. In this case, if the car is driving at high speed on the highway, the above reaction of the tires will accelerate, and it is likely to have a flat tire.