What to do if the address is not filled in when applying for the exemption inspection mark?

What is the working principle of a power steering system?

The working principle of a power steering system is: when the car is driving straight, the steering control valve connects the working fluid pumped by the steering oil pump to the oil tank, and the steering oil pump is in an unloading state. When the car needs to turn right, the steering control valve connects the working fluid pumped by the steering oil pump to the R chamber and connects the L chamber to the oil tank, causing the left and right wheels to deflect to the right through the transmission structure to achieve a right turn. The function of the steering gear is to amplify the torque applied by the driver to the steering wheel and reduce the speed, then transmit it to the steering linkage. Since the steering gear is a mechanism with a large transmission ratio, its transmission efficiency is generally low. The ratio of the output power to the input power of the steering gear is called the transmission efficiency of the steering gear. The transmission efficiency obtained when the power is input from the steering column and output from the steering rocker arm is called the positive efficiency, while the efficiency obtained when the transmission direction is opposite is called the reverse efficiency.

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What are the reasons for water accumulation under the driver's side car mat?

The reasons for water accumulation under the driver's side car mat include: 1. Sunroof leakage or damage to the car's sealing strips, which causes water leakage; 2. Water from car washing that was not cleaned properly, leading to water accumulation under the mat; 3. Rusting of the car's small water tank, which is used for the interior heating system, resulting in water leakage. The solution to water accumulation under the car mat is to first remove the soaked carpet or mat, then clean out the remaining water inside the car. There are several rubber sealing plugs at the bottom of the vehicle chassis; opening these plugs can drain the accumulated water from the cabin. However, since the interior flooring material is highly absorbent, it should be removed and placed in a spacious area to facilitate water evaporation. If the water ingress is not severe, after cleaning the accumulated water, simply open the car windows on a sunny day to allow thorough drying. You can park the car in a sunny spot, open the doors for drying, or adjust the vehicle's air circulation switch to internal circulation to allow the water vapor inside the cabin to be expelled through the air conditioning system.

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How Long Can Car Bearings Last?

Car bearings can generally last around 100,000 kilometers if properly maintained and used. Bearings are a crucial component of the tires, and regular maintenance and replacement of bearings are essential for safe driving. If a tire bearing is damaged, it will produce a buzzing noise that increases with speed. To diagnose the issue, the driver can accelerate to a certain speed and then coast in neutral. If the buzzing noise persists unchanged, it is likely a problem with the tire bearing. The car body may also vibrate, with the vibration becoming more intense as the speed increases.

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What does the number of axles on a car mean?

Car axle number refers to how many wheel-mounted axles are under the vehicle. For example, trucks may have single rear axle, double rear axles, or triple rear axles, while the front axle is usually single. The axle count mainly applies to cargo trucks, military vehicles, special-purpose vehicles, or some large buses. The car axle, also called wheel axle, connects to the frame or unibody through suspension, with wheels mounted at both ends. The function of axles is to bear vehicle loads and maintain normal road operation. Depending on suspension structure, axles can be classified as rigid type or independent type.

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What are the causes of abnormal noise in automotive bearings?

Automotive bearing abnormal noise may be caused by: 1. Insufficient grease separation inside the bearing, leading to inadequate lubrication of the bearing groove and steel balls; 2. Excessive tightness in the bearing inner ring separation, preventing the inner ring from rotating with the spring when in contact with the clutch diaphragm spring, resulting in friction between the inner ring and the diaphragm spring; 3. Insufficient assembly height of the release bearing causing the outer ring to contact the diaphragm spring, producing various noises due to friction; 4. The clutch diaphragm spring is not separating on a single plane, causing intermittent contact and collision between the bearing and the spring fingers during rotation; 5. Reduced elasticity of the diaphragm spring after prolonged use, leading to abnormal noise from friction between the bearing outer ring and the separation components.

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What gas is inside a car's airbag?

Car airbags contain nitrogen gas. The airbag contains solid sodium azide (NaN3), which rapidly decomposes upon severe impact to generate a large amount of nitrogen gas. Therefore, the airbag is filled with nitrogen (NaN3 decomposes into Na and N2). Car airbags are designed to ensure the safety of drivers and passengers, so the gas used for inflation must be inert, typically nitrogen. Airbags are a passive safety technology and do not have an active switch. They deploy only when the car experiences a collision. Based on signals from sensors, the gas generator determines whether to ignite, causing the solid fuel to explode and rapidly inflate the airbag with nitrogen, while the airbag itself deploys.

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What to do if the address is not filled in when applying for the exemption inspection mark?

What is the working principle of a power steering system?

What are the reasons for water accumulation under the driver's side car mat?

How Long Can Car Bearings Last?

What does the number of axles on a car mean?

What are the causes of abnormal noise in automotive bearings?

What gas is inside a car's airbag?

Can You Park on the Emergency Lane of a Highway?

What Causes High Engine RPM in Cars?

What to Do When the Power Steering Warning Light Comes On?

What Are the Reasons for a Car's Tachometer Not Moving?