What is the BJ40C?

Why Does a Car's Steering Wheel Shake?

Steering wheel shaking in cars is often caused by tire-related issues. Below is a detailed introduction to the specific reasons for steering wheel shaking: 1. Toe-in: Collisions during driving can deform the steering tie rod and cross rod, wear out various ball joints, or cause irregular tire wear, leading to increased or decreased toe-in. 2. Wheel dynamic balance: After a certain mileage, the original wheel balancing weights may fall off, or the wheel hub may deform, causing the front end to sway and the steering wheel to shake at high speeds. 3. Push rod: Loose transverse push rod ball joints or loose supports can result in unstable driving conditions. 4. Wheel hub bearings: Loose wheel hub bearings and severe wear on the left and right steering knuckle ball joints can lead to inaccurate front wheel alignment.

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Are the headlights of a car high beam or low beam

The headlight is neither the low beam nor the high beam. The headlight includes both the high beam and the low beam. Turning on the headlight means activating the power supply of the headlight. On the turn signal lever, there is a switch for switching between high beam and low beam. Pushing it upward is for low beam, and pushing it downward is for high beam. When in the low beam position, lifting it upward again will also switch to high beam, but this is a momentary switch, and releasing it will revert to low beam. The function of high beam and low beam is to illuminate the road ahead of the vehicle. The effective illumination distance of the low beam should be 50 meters, while the effective illumination distance of the high beam should be 150 meters. Car headlights are also called car front lights or car LED daytime running lights, which are closely related to safe driving at night or in bad weather conditions.

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Why does the car always feel like it's floating when driving?

Driving often feels like the car is floating because the tires are old. Below are the specific reasons why the car feels like it's floating when driving: 1. Weak tire grip: The car floating during driving is largely related to the tires. Weak tire grip can cause the car to feel floaty. 2. High center of gravity: If the car's center of gravity is too high, it not only affects the braking performance but also the driving stability. 3. Too soft suspension: Another important reason for the car floating during driving is that the chassis suspension is too soft. The stability of the car at high speeds is determined by the structure connecting the body and the wheel suspension, so the design of the chassis plays a crucial role in the car's stability. Car suspensions are divided into soft and hard suspensions.

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How Does a Carburetor Work?

The working principle of a carburetor is as follows: 1. Air from the outside is filtered and then enters the carburetor, with the amount of air intake controlled by the position of the choke valve. 2. The air rushes through the venturi inside the carburetor, creating suction that draws fuel from the float chamber through the nozzle and atomizes it. 3. The atomized fuel mixes with air and is then drawn into the cylinder through the intake manifold. The amount of the air-fuel mixture is controlled by the throttle pedal, which operates the throttle inside the carburetor. 4. The amount of fuel pumped into the float chamber by the fuel pump is controlled by the float inside the float chamber. The float rises and falls with the fuel level in the float chamber. When the float chamber is filled with gasoline, the float rises and uses its needle valve to block the fuel inlet.

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Why do the brake lights stay on without pressing the brake pedal?

Since the rear lights of a car are used for width indication at night, they must remain constantly illuminated. Below is relevant information about brake lights: 1. Car rear brake lights: Rear lights refer to white lights installed as close as possible to the rear of the vehicle, displaying uninterrupted illumination. From directly behind the vehicle to 67.5° on each side, they emit a horizontal light arc of 135°. Their visibility distance is required to be 3 and 2 nautical miles based on the length of the vessel. They are used to indicate the vessel's movement and identify the movement of other vessels, aiding in determining crossing or overtaking situations. 2. The function of car brake lights: The purpose of rear brake lights and high-mounted brake lights is to make it easier for vehicles behind to notice when the vehicle ahead is braking, thereby helping to prevent rear-end collisions. The brake indicator light on the dashboard serves to alert the driver when the rear brake lights are activated.

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Why Did the Driving School Suspend Exams?

The reason for the suspension of driving school exams is due to an upgrade of the driving test system. Below is some relevant information about driver's licenses: 1. Driving requirements: According to the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses,' the scope of a C1 driver's license covers small and micro passenger vehicles, as well as light and micro cargo vehicles; light, small, and micro special-purpose vehicles; and small passenger vehicles with a seating capacity of 9 or fewer. Based on these standards, a C1 license does not permit driving vehicles with more than 9 seats. 2. Requirements for test vehicles: Light general cargo vehicles with a length of no less than 5 meters, or small general passenger vehicles with a length of no less than 4 meters, or cars with a length of no less than 4 meters.

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What is the BJ40C?

Why Does a Car's Steering Wheel Shake?

Are the headlights of a car high beam or low beam

Why does the car always feel like it's floating when driving?

How Does a Carburetor Work?

Why do the brake lights stay on without pressing the brake pedal?

Why Did the Driving School Suspend Exams?

What Causes Scratches on New Car Brake Pads?

Differences Between BMW 3 Series Smart Key and Regular Key

What Causes the Sound of Water Sloshing While Driving?

Is Four-Wheel Soundproofing Effective?