What are the mandatory insurances for motor vehicles?

What is a body-on-frame structure?

A body-on-frame vehicle has a rigid frame, also known as a chassis frame. The body-on-frame structure refers to a chassis type where the frame carries the entire vehicle body, with the engine, suspension, and body all mounted on the frame. The frame features screw holes for securing the body and bases for fixing the springs. Here is an introduction to the advantages of body-on-frame structures: 1. High body strength: The steel frame provides strong body rigidity, which is particularly important for trucks and off-road vehicles. The feedback from road bumps is much milder inside the cabin because some vehicles use vibration-damping methods to connect the body and chassis, making them more stable and comfortable on rough roads. 2. Independent frame with high chassis strength, commonly used in trucks, buses, and off-road Jeeps. 3. Uneven forces on the four wheels are borne by the frame rather than being transmitted to the body, which is why SUVs and off-road vehicles often use this structure. Non-integral body-on-frame structures are widely applied in China's bus manufacturing industry. 4. The body and frame are connected by elastic components, providing certain cushioning and vibration-damping effects. This results in a smoother driving experience on highways.

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How long does the battery of a car key generally last?

Generally, the battery life of a remote key is about 2-3 years, depending on the frequency of use. Different car models may vary, so it's difficult to determine the exact replacement time. Don't panic if the battery runs out. Most remote keys come with a spare mechanical key inside, and some have a button to automatically pop it out. Here are some precautions regarding the use of car keys: 1. Do not place it with electronic devices: Since smart keys use low-intensity radio waves, they may not function properly in the presence of magnetic interference. 2. Avoid dropping or throwing it: Smart keys are most vulnerable to being dropped from a height. While the outer shell is usually sturdy, the internal circuitry is less resistant to impact and can be easily damaged by severe collisions. 3. Do not leave the spare key inside the car: If a car key is lost due to improper storage, it can cause a lot of trouble, especially for smart keys. Once lost, not only does it need to be replaced, but it also requires re-matching with the car's computer system.

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What Could Cause Excessive Oil Pressure?

There are three main causes of excessive oil pressure. Below are the related reasons: 1. Excessive oil viscosity. The viscosity of the oil is closely related to its quality. Higher viscosity means better resistance to high temperatures, and vice versa. However, higher viscosity is not always better. It's essential to use an oil grade that matches your engine. 2. Pressure relief valve blockage or improper adjustment. To prevent excessive oil pressure in the lubrication system, which can increase engine power consumption and cause leaks at sealed connections in the oil circuit, a pressure relief valve is installed in the main oil passage or oil pump. Its function is to limit the oil pressure in the lubrication system to ensure it does not exceed the specified value. Therefore, a faulty pressure relief valve is one of the causes of excessive oil pressure. 3. Oil filter blockage. The oil filter is a critical component for filtering oil. If it becomes blocked, the consequences are similar to those of a blocked pressure relief valve. Therefore, it's important to regularly inspect and maintain the oil and filter, ensuring the quality of the added oil meets the required standards.

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What to Do If Novice Drivers Tend to Cross Lane Lines?

Solutions for novice drivers who tend to cross lane lines: While driving, try to stay in the center of the lane, leaving about 60 centimeters of space on both sides. When your line of sight aligns with the intersection of the dashboard and the pillar and coincides with the center line, the car body is exactly 60 centimeters away from the center line. Here are some related details: 1. Lines that novice drivers must not cross include solid white lines, solid yellow lines, etc. Dashed white lines and solid white lines are the most common markings on roads. Dashed white lines and solid white lines are used to separate lanes traveling in the same direction. In sections with dashed lines, actions like changing lanes or overtaking are allowed. However, solid white lines, such as those on bridge roads, do not permit crossing or overtaking. If you happen to cross a solid line under a surveillance camera, you will be penalized. 2. Solid yellow lines are used to separate lanes traveling in opposite directions. Single solid yellow lines are used for single lanes, while double solid yellow lines are used for multiple lanes. Whether single or double solid lines, crossing or pressing on them is not allowed. Therefore, actions like overtaking or making U-turns are considered violations. Dashed yellow lines are commonly seen on narrow roads where lane borrowing is often necessary due to road conditions. In areas with dashed yellow lines, actions like crossing, borrowing lanes, overtaking, or making U-turns are not considered violations.

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What size tires fit 16-inch rims?

16-inch rims are compatible with tires ranging from 185 to 275mm in width. Tires are circular elastic rubber products mounted on metal rims, designed for various vehicles or machinery to roll on the ground. They support the vehicle body, absorb external shocks, maintain contact with the road surface, and ensure driving performance. The functions of tires include: 1. Supporting the entire weight of the vehicle, bearing the load, and transmitting directional forces and moments; 2. Working with the vehicle suspension to cushion impacts during driving and dampen resulting vibrations; 3. Protecting vehicle components from severe vibrations and premature wear, adapting to high-speed performance, and reducing driving noise; 4. Transmitting traction and braking torque, ensuring good adhesion between the wheels and the road surface, and enhancing the vehicle's power, braking, and off-road capabilities.

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What is a starter composed of?

Modern starters consist of three main components: the electric motor, the transmission mechanism, and the control device. Specifically designed to start the engine, starters require high torque and therefore draw a large current, often reaching hundreds of amperes. This characteristic distinguishes them from generators. Below is an introduction to modern starters: 1. The DC starter is composed of a DC series-wound motor, an operating mechanism, and a clutch mechanism. Designed specifically to start the engine, it requires high torque and draws a large current, often reaching hundreds of amperes. The starter uses a DC series-wound motor, with both the rotor and stator wound with relatively thick rectangular-section copper wire. The drive mechanism employs a reduction gear structure, while the operating mechanism uses an electromagnetic attraction method. 2. Transmission mechanism (engagement mechanism): During engine startup, it engages the starter's drive gear with the flywheel ring gear to transmit the starter's torque to the engine crankshaft. After the engine starts, it automatically disengages the gear. 3. Electromagnetic switch: The starter's control device, which controls the circuit's on/off state.

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What are the mandatory insurances for motor vehicles?

What is a body-on-frame structure?

How long does the battery of a car key generally last?

What Could Cause Excessive Oil Pressure?

What to Do If Novice Drivers Tend to Cross Lane Lines?

What size tires fit 16-inch rims?

What is a starter composed of?

Do You Need to Change Car Antifreeze in Summer?

Can Car License Plates Be Retained When Changing Vehicles?

What Causes Car Body Shaking?

How to Check the Production Date of Your Car?