Can Motor Oil Be Used as Fan Lubricant?

What are the deduction details for Subject 2?

Here are the relevant details about the deductions for Subject 2: 1. Not wearing a seatbelt: Deduct 100 points. 2. Starting the engine with the gear not in neutral: Deduct 100 points. 3. Turn signals: Not using turn signals (including starting, changing lanes, overtaking, turning, and parking); Using turn signals for less than 3 seconds; Forgetting to turn off turn signals or using them incorrectly: Deduct 10 points. 4. Stalling once: Deduct 10 points. 5. Wheels pressing against the edge line: Deduct 100 points. 6. Stopping for more than 2 seconds during the test: Deduct 5 points. 7. Not following the prescribed route or sequence: Deduct 100 points. 8. Failing to reverse into the garage: Deduct 100 points. 9. Vehicle body crossing the line: Deduct 100 points.

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What is the commonly used generator in automobiles?

In the past, automobile generators were all DC generators, which did not require rectification. However, the structure of the generator was complex and prone to damage. After the advent of silicon rectifier components, AC generators quickly replaced DC generators. Gasoline engines commonly use JFZ generators, while diesel engines commonly use JFB generators. The working characteristics of automobile generators are as follows: 1. No-load characteristic: The relationship between the generator terminal voltage and speed when the generator is running without load. The no-load characteristic can determine the low-speed charging performance of the generator, and it can also be seen that the output voltage of the generator increases with the increase in generator speed. 2. Output characteristic: When the generator output voltage is constant, the output current changes with speed. Due to this protective feature, AC generators generally do not require a current limiter. 3. External characteristic: The relationship between the generator terminal voltage and output current when the generator speed is constant. From the external characteristic curve, it can be seen that the generator terminal voltage changes significantly with speed variations. When the speed is constant, changes in output current also greatly affect the terminal voltage. Therefore, to stabilize the output current, a voltage regulator must be used. At high speeds, if the generator suddenly loses its load, the terminal voltage will rise sharply, posing a risk of breakdown to the electronic components in the electrical equipment.

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Can I Change My Car's Engine Oil Myself?

Certainly, you can change your car's engine oil by yourself, but it requires the owner to understand the operational procedures and have the necessary tools for disassembly. If the owner does not meet the conditions for changing the oil themselves, it is advisable to visit a 4S shop or a professional and formal repair shop. Below is some relevant information about car engine oil: 1. Introduction One: Engine oil, commonly referred to as engine lubricant. 2. Introduction Two: It serves to lubricate and reduce friction in the engine, assist in cooling, seal against leaks, prevent rust and corrosion, and act as a shock absorber. 3. Introduction Three: It is hailed as the "blood" of the car, consisting of base oil and additives, and car engine oil has a replacement cycle.

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Is a car battery voltage above 14V normal?

Car battery voltage of 14V is considered normal. The normal voltage of a car battery is approximately 13V, with a load voltage not less than 11V. Below this voltage, starting the car may be difficult. After starting, as the alternator begins generating electricity, the normal voltage of the car battery should be between 13.5V and 14.5V. Here are some related details about car batteries: 1. Detail one: Both excessively high or low battery voltage can have certain impacts. It's advisable to regularly check the battery's condition. If the battery voltage drops below 10.8V, it should be charged promptly. If the voltage is too low, the car may experience difficulty starting or even fail to start. Conversely, if the voltage is too high, it may damage the battery. 2. Detail two: The battery can be charged by the alternator while the car is running. If the car is parked for an extended period, the battery may lose charge, making it difficult to start the car. Therefore, during long-term parking, it's recommended to start the car at least once a week. The alternator will charge the battery, typically requiring idling for more than 5 minutes.

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What Are the Reasons for the Car Horn Sound Becoming Quieter?

The reasons for the car horn sound becoming quieter are as follows: 1. Original volume of the audio file: The music file itself has a low bitrate and low volume; 2. Volume of the software player: The software player must also be turned to maximum, otherwise there will naturally be no sound. Check this issue, and if it is the problem, adjust the volume to an appropriate level; 3. Electromagnetic interference: The causes are relatively complex, electrical equipment connected or not connected to the computer may cause electromagnetic interference. It is relatively easy to check—if the interference weakens, the volume will return to normal. You can try reconnecting the speaker plug; 4. Speaker volume knob—turn it to maximum for troubleshooting; 5. The speaker's fine wire may be broken, or the speaker cone may be damaged; 6. Short circuit in the speaker output, causing the car audio amplifier to short circuit and enter output protection mode, resulting in very low sound; 7. Damage to the amplifier block; 8. The gap of the diaphragm contact has changed: Adjusting the small screw for the contact gap on the horn can restore the sound to normal.

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How to Change the Area of a Temporary License Plate?

You can submit an application at the local vehicle management office. Once approved, the type of temporary license plate can be changed. Temporary license plates are valid nationwide and have the same legal effect as regular license plates. Temporary license plates for motor vehicles have a specific validity period, and they become invalid once this period expires. Below is an introduction to the process of applying for a temporary license plate: 1. Online Vehicle Management Office: Log in to the online vehicle management office page and follow the instructions to complete the application for a temporary license plate online. 2. Offline Vehicle Management Office: Bring the required supporting documents to the vehicle management office, and with the assistance of the staff, you can complete the application for a temporary license plate. 3. Traffic Brigade or Traffic Division: You can visit any traffic brigade or traffic division's vehicle management station to apply for a temporary license plate for your vehicle. 4. Authorized 4S Store: You can authorize a 4S store to handle the application for a temporary license plate on your behalf. Generally, 4S stores charge a fee of 10–20 yuan for processing temporary license plates.

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Can Motor Oil Be Used as Fan Lubricant?

What are the deduction details for Subject 2?

What is the commonly used generator in automobiles?

Can I Change My Car's Engine Oil Myself?

Is a car battery voltage above 14V normal?

What Are the Reasons for the Car Horn Sound Becoming Quieter?

How to Change the Area of a Temporary License Plate?

How Long Is the Warranty Period for Car Batteries?

How to Identify the Authenticity of a Motor Vehicle Green Book?

How to adjust the rearview mirrors for reversing into the garage in Subject 2?

Where Can I Add Points to My Driver's License?