Why are skirts not allowed in Subject 2 driving test?

Nationally Permitted Vehicle Modification Scope?

Legal vehicle modification scopes are as follows: 1. Exterior decals: For example, vehicle wraps and stickers are considered legal modifications. However, if the decal area exceeds 30% of the vehicle body, approval from the traffic police department or vehicle management office is required. 2. Installation of front/rear anti-collision devices: Small and micro passenger vehicles can install front/rear anti-collision devices without registration modification, provided they don't obstruct or indirectly obstruct license plates. 3. Interior modifications: Generally, interior modifications that don't affect vehicle safety structure don't require approval, such as full leather interior replacement or installing sport kits.

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How to Start a Car with a Remote Key?

Press the start button on the key to start the car. Here is some information about remote keys: 1. Advantages and Disadvantages: Remote keys provide a great user experience, meeting people's demands for convenience and comfort. However, due to the technical limitations of one-way RF communication, they have inherent shortcomings in terms of security. 2. Usage Instructions: When the owner enters the effective range near the car, the car will automatically detect the key and perform identity verification. If successful, it will unlock the doors or trunk accordingly. When the owner enters the car, simply press the engine start button. The car will automatically detect the key's position to determine if it is inside the car and in the driver's seat. If successful, the engine will start.

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What is the fuel consumption of the diesel version of the Haval H9?

Haval H9 has a fuel consumption of 9.9 liters per 100 kilometers. The actual fuel consumption is greatly related to the vehicle condition and road conditions, and is not an absolute value. The reasons for increased fuel consumption and the calculation methods are as follows: Reasons for increased fuel consumption: Use of inappropriate fuel; aging of engine spark plugs and excessive carbon deposits, which directly affect the ignition effect; poor fuel flow, such as a dirty gasoline filter. Methods for calculating vehicle fuel consumption: The first method is through the vehicle dashboard records. After resetting the mileage data, the onboard computer automatically calculates the fuel consumption based on the recorded mileage and fuel consumption data. The second method is to calculate the fuel consumption by recording the mileage after a single refueling. Both methods provide the average fuel consumption of the vehicle.

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What Causes Car Vibration at High Speeds but Not at Low Speeds?

Car vibration at high speeds but not at low speeds can be caused by the following reasons: 1. Dirty air filter: The air filter is designed to protect the engine and reduce wear, usually requiring replacement every 10,000 kilometers. If not replaced in time, insufficient air intake can cause low idle speed, leading to engine vibration. Simply replacing the filter can solve the problem. 2. Broken high-voltage line: A broken high-voltage line refers to a break in the conductor core, which can affect ignition and cause engine vibration. Use a multimeter to measure the resistance and replace the one with significantly higher resistance. 3. Spark plug lifespan: Spark plugs have a limited lifespan. After 30,000-40,000 kilometers, their ignition efficiency noticeably decreases, affecting ignition. This is the most common issue, and replacing all spark plugs can resolve it.

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Does the car handbrake control the front or rear brakes?

Generally, the car handbrake controls the rear wheels because it typically uses a steel cable connected to the rear brake shoes, which functions to control the braking of the rear wheels rather than the front wheels. Its primary purpose is to prevent the vehicle from rolling when parked. While the foot brake usually engages all four wheels, the handbrake, due to space constraints within the wheel assembly, typically acts on the non-driven wheels, i.e., the rear wheels. For most light passenger cars, the handbrake operates by leveraging the principle of a lever to pull the brake cable, thereby locking the rear brake shoes or calipers. In light to medium-duty trucks and vehicles with a driveshaft, such as SUVs, the handbrake often mechanically locks the brake drum on the driveshaft to achieve braking. The handbrake is frequently used during regular vehicle operation. After parking and turning off the engine, it is essential to engage the handbrake firmly to prevent the car from rolling. Mechanical handbrakes feature a handbrake cable beneath the handbrake lever, which connects to both rear wheels. Electronic handbrakes, on the other hand, have electric motors at each rear wheel; pressing the button activates these motors to clamp the brake pads, ensuring the car does not roll. When driving, it is necessary to release the handbrake; otherwise, it will accelerate wear on both the handbrake system and the tires. When parking on a slope, always ensure the handbrake is fully engaged to avoid rolling. After engaging the handbrake, an indicator light will illuminate on the dashboard, and it will turn off once the handbrake is released.

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What does CAN mean in car CD player wiring?

Car CD player wiring CAN can achieve the display of some vehicle information on the CD. Some low-end car CDs are reduced-configuration machines without CAN lines, which can only play music. Many people buy high-end CDs to modify by themselves, and they need to connect the CAN line. Otherwise, the CD player will automatically shut down after one hour, and there will be no button lights. The following is an extended introduction: 1. CAN introduction: CAN is a protocol line, which is connected to the black box, NC means not to connect, GND is the ground, which is connected to the negative pole of the battery. 2. Letter definitions: A plug is the power supply, GND = ground. B+ = +12V, ILL = button small light line, AAC = key switch, MUTE = mute, KL.15 = K line.

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Why are skirts not allowed in Subject 2 driving test?

Nationally Permitted Vehicle Modification Scope?

How to Start a Car with a Remote Key?

What is the fuel consumption of the diesel version of the Haval H9?

What Causes Car Vibration at High Speeds but Not at Low Speeds?

Does the car handbrake control the front or rear brakes?

What does CAN mean in car CD player wiring?

What is Subject Four Called?

Which Material is Best for Spark Plugs?

What Causes the Abnormal Noises in Sylphy?

How to Remove Scratches on a Car?