What to Do When the Engine Catches Fire?

Can I Take the Subject 2 Driving Test with an Expired ID Card?

An expired ID card cannot be used to take the Subject 2 driving test. According to relevant regulations, first-time applicants for a driver's license must submit valid identity proof. An expired ID card has no legal validity, and the staff at the test center will check the validity of the candidate's documents before the exam. If the documents are expired, the candidate will not be allowed to take the test, and even if they participate, the results will be deemed invalid. Below is an introduction to the driving test subjects: Subject 1: Road traffic safety laws, regulations, and related knowledge (Subject 1) is a written test conducted on a computer, with a full score of 100. A score of 90 or above (including 90) is required to pass. Subject 2: Field driving skills test (Subject 2) is conducted in a real vehicle on a closed course. Results are simply pass or fail. The test includes five mandatory items performed in sequence: reversing into a parking space, parallel parking, S-curve driving, right-angle turning, and hill start and stop. The full score is 100, with 80 or above (including 80) required to pass. Subject 3: Road driving skills test (Subject 3) is conducted on a road or simulated course in a real vehicle. The full score is 100, with passing scores of 90 or above for large buses, 80 or above for large trucks, and 70 or above for other vehicle types. Subject 4: Safety and civilized driving knowledge (Subject 4) is a written test with a full score of 100, requiring 90 or above (including 90) to pass.

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What does the car mute mean?

It can be used to mute the multimedia with one click. Here is more information about mute: 1. Brief description: The MUTE button is used to adjust the mute mode of multimedia. When playing music, if you need to mute, just press the MUTE button on the car to achieve it, which is the same principle as the mute button on the phone. 2. Usage: Mute: Press once to mute, but it is only mute, the song will continue to play and will not be terminated, and pressing this MUTE button again will restore the sound.

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Can the width of motorcycle tires be modified?

Yes, but it depends on the specific situation. However, increasing the width may cause interference with other components, potentially leading to inability to ride or even accidents. Therefore, such modifications are not recommended. Like car tires, motorcycle tires undergo rigorous safety and performance tests before leaving the factory. Any failure to meet standards or pass tests could lead to adverse consequences. From the perspective of the front wheel's steering properties, the friction it bears is only lateral, unlike the rear wheel which bears forces from two directions: the power output from the engine and the lateral friction from steering. Therefore, the front wheel does not require a high level of friction. In terms of performance, a front wheel width below 120mm is sufficient. Structurally, the front wheel cannot be widened too much due to limitations from the fender width and the distance between the shock absorbers. If you want to widen the motorcycle tires, the rear wheel can be widened to the maximum allowable within structural limits. However, the front wheel does not need significant widening in terms of performance or structure. If it is originally 100mm or 110mm, there is no need to widen it further. Advantages of widening motorcycle tires: Increased grip: Generally, the wider the tire, the larger the contact area, which improves traction. Enhanced stability: Widening the tires improves the vehicle's stability, especially noticeable on curves or slippery roads. Improved braking performance: The increased contact area between the vehicle and the ground enhances braking effectiveness. Despite these advantages, widening the tires also comes with noticeable drawbacks, primarily affecting the vehicle's power and fuel consumption, largely due to increased rolling resistance.

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How Far Can the Rearview Camera See?

The rearview camera can see a distance of more than 3 meters. However, the actual visible distance varies depending on the environment, due to the following reasons: 1. Different car brands: The distance visible by the rearview camera varies. 2. Different car models: The distance visible by the rearview camera also varies. Information about the rearview camera is as follows: 1. Rearview camera: Also known as a parking assist system, or reverse visual system, or vehicle monitoring system. English name: vehicle-backup-camera. 2. After the rearview camera is activated, there are generally three colored lines on the central control display: red, yellow, and blue. The red line indicates the closest distance, usually around 30 centimeters, where you can turn or continue reversing; the yellow line indicates a distance of about 1 meter, at which point you need to pay close attention to avoid scratches; the blue line indicates the farthest distance, usually around 3 meters. 3. Function: The rearview camera can only serve as an auxiliary tool and should not be completely relied upon. This is because the image displayed by the rearview camera may have significant distortion, differing from the actual distance proportions in reality.

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Differences Between LNG and CNG

Differences between LNG and CNG: 1. Similarities and Differences: Both are natural gas with the same composition, differing only in their states of existence. 2. Meaning of CNG: CNG stands for Compressed Natural Gas, which is natural gas pressurized (over 3,600 pounds per square inch) and stored in containers in a gaseous state. 3. Meaning of LNG: LNG stands for Liquefied Natural Gas. LNG is produced by cooling gaseous natural gas at atmospheric pressure to -162°C, causing it to condense into a liquid. 4. Storage State and Containers: The storage states and containers differ. CNG is stored as a high-pressure gas in pressure vessels, typically at 20MPa, while LNG is stored in a cryogenic state in pressure vessels, usually at -160°C. The amount stored in pressure vessels of the same water volume differs under standard conditions.

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What are the standard dimensions of a sedan?

The standard dimensions of a sedan are categorized into several levels. For household sedans, the length typically ranges between 3800mm and 4300mm, the width between 1600mm and 1800mm, and the height between 1400mm and 1600mm. Below is a detailed introduction: Length: Length is the most influential parameter affecting the car's purpose, functionality, and ease of use. Therefore, vehicle classes are generally divided based on length. A longer body means more longitudinal usable space, which is obvious; however, an excessively long body can make turning and parking inconvenient. There is a significant difference in driving feel between a 4-meter-long car and a 5-meter-long one. Generally, small and medium-sized passenger cars are about 4 meters long, while those approaching 5 meters can be considered large cars. Width: Width mainly affects seating space and flexibility. For passenger sedans, if three seats are to be arranged side by side with a spacious feel (primarily sufficient shoulder room), the width should generally reach 1.8M. In recent years, due to increased safety requirements, the thickness of door panels has increased, leading to a general increase in vehicle width. Height: Vehicle height directly impacts the center of gravity (handling) and space. Most sedans are under 1.5 meters tall, significantly lower than the natural sitting height of a human body, mainly to lower the vehicle's center of gravity and ensure stability during high-speed turns. MPVs and minivans, designed to provide ample headroom and cargo space, are generally taller (over 1.6 meters), but this raises the vehicle's center of gravity, resulting in larger body roll angles during turns—a significant drawback of taller vehicles. Wheelbase: Once the vehicle length is determined, the wheelbase becomes the most critical factor affecting seating space, as the majority of two-box and three-box sedans position passenger seats between the front and rear axles. A longer wheelbase increases longitudinal space for passengers, directly benefiting legroom, which greatly impacts comfort. In terms of driving performance, a longer wheelbase enhances straight-line cruising stability but reduces turning agility and increases the turning radius. Therefore, a balance must be struck between stability and agility.

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What to Do When the Engine Catches Fire?

Can I Take the Subject 2 Driving Test with an Expired ID Card?

What does the car mute mean?

Can the width of motorcycle tires be modified?

How Far Can the Rearview Camera See?

Differences Between LNG and CNG

What are the standard dimensions of a sedan?

What is the speed limit when crossing an intersection?

How to Remove Adhesive from Car Glass?

How Often Should the Battery Be Replaced?

Automotive Air Conditioning Pressure Testing Method