What should drivers pay attention to when driving on mountain roads?

How to Prioritize Rescheduling After Failing Subject 3 Once?

Maintain frequent communication with your instructor, inform them about your tight schedule, and request them to prioritize your rescheduling. If you're not confident about the instructor's assistance, you can make an online reservation yourself. Currently, students are permitted to independently schedule their driving test subjects.

18

5

Share

Where is the car temperature sensor located?

The water temperature sensor is generally installed on the water passage or radiator of the car. Relevant information is as follows: Introduction: The car water temperature sensor is installed on the water jacket of the engine cylinder block or cylinder head, in direct contact with the coolant, and can be used to measure the temperature of the engine coolant. Strictly speaking, water temperature sensors are divided into two major categories. Regardless of the type, their internal structure consists of a thermistor with a resistance ranging from 275 ohms to 6500 ohms. Moreover, the lower the temperature, the higher the resistance; the higher the temperature, the lower the resistance. Principle of the car water temperature sensor: The interior of the car water temperature sensor is a thermistor. The lower the temperature, the higher the resistance; conversely, the higher the temperature, the lower the resistance. It is installed on the water jacket of the engine cylinder block or cylinder head, in direct contact with the cooling water, thereby measuring the temperature of the engine coolant. The electronic control unit measures the temperature of the engine coolant based on this change. The lower the temperature, the higher the resistance; conversely, the higher the temperature, the lower the resistance. The electronic control unit uses this change to measure the temperature of the engine coolant as a correction signal for fuel injection and ignition timing. The temperature of the engine coolant can be used to understand the current operating state of the car, whether it is stopped or moving, or how long it has been running.

6

1

Share

What are the reasons why cars have difficulty starting in summer?

Possible causes of car spontaneous combustion in summer are as follows: Overheating of the braking system: The vehicle's braking system relies on friction to achieve stopping, and friction inevitably generates heat. Under high summer temperatures, the braking system faces even harsher conditions. Prolonged braking friction causes a rapid rise in temperature of the tires and brake drums, igniting the tires and leading to vehicle spontaneous combustion. This scenario is also one of the most common causes of truck spontaneous combustion in summer. Cargo spontaneous combustion: Due to high temperatures, some cargoes are prone to spontaneous combustion after prolonged exposure to sunlight. Special attention must be paid to the types of goods being transported. Vehicles carrying cotton, fabrics, or waste paper must ensure the cargo is tightly wrapped before departure, as incidents of cargo ignition by cigarette butts are frequent. Certain chemicals must be kept shaded and ventilated. It is particularly important to note that summer weather changes quickly, and vehicles transporting calcium carbide must be waterproofed; otherwise, calcium carbide will combust violently upon contact with water. Electrical system failure: Aging electrical systems, exposed wires, and contact between ground and live wires can produce sparks that ignite the vehicle's interior plastic components. Such cases of spontaneous combustion are not uncommon and have become the most overlooked and highest-rate causes of truck spontaneous combustion in summer. Especially now, with the increase in electronic devices inside trucks, many owners prefer to modify audio systems and other electronic devices themselves. These modifications involve changes to the electrical circuits, which, if not handled carefully, can easily lead to fires.

3

Share

Can Electric Vehicles Be Charged in the Rain?

Electric vehicles can be charged during rainy weather. China has implemented strict controls on the waterproof performance of EV charging piles, charging gun sockets, and other components to prevent safety incidents such as battery leakage during the charging process. From the perspective of the electric vehicle itself, the onboard power batteries are designed with waterproofing, and the charging ports are equipped with insulated sealing rings. Precautions for charging electric vehicles in the rain: Choose a parking spot on higher ground to prevent the vehicle's battery from being submerged in water. When using a charging pile, ensure the charging port is free of accumulated water before starting the charge to avoid water ingress. When plugging or unplugging the charging handle, prevent water from flowing into the port. Check whether the charging gun has been soaked in rainwater and if there is any dirt inside. Inspect and remove any accumulated water or dirt from the charging gun, wiping the gun head clean before use. When removing the gun from the charging pile, be careful to prevent rainwater from splashing into the gun head, and always keep the gun nozzle facing downward while moving it. When opening the cover of the onboard charging socket, ensure it is not exposed to rain to prevent water from splashing inside. When inserting or removing the charging gun from the onboard charging socket, always use a rain cover to shield it, avoiding water splashes into the charging gun or the onboard charging socket.

18

2

Share

How to Use an AUX Audio Cable in a Car?

Prepare an AUX cable, then locate the AUX interface in the car, which is usually labeled with the letters 'AUX'. Insert one end of the AUX cable into the car's AUX interface, and then connect the other end of the AUX cable to the headphone jack of an external audio device. Set the car's audio input mode to AUX audio input, allowing audio output from electronic audio devices including MP3 players.

1

3

Share

How Often Should the Tire Pressure Sensor Battery Be Replaced?

Tire pressure sensor batteries typically last 2 to 3 years, with a general recommendation to replace them every 2 years. However, original equipment manufacturer (OEM) batteries have a longer lifespan, usually lasting 8-10 years or even longer. There are three common types of tire pressure monitoring systems: Direct Tire Pressure Monitoring: Direct tire pressure monitoring systems use pressure sensors installed in each tire to directly measure the tire's air pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the tire pressure data for each tire. The system automatically alerts the driver when the tire pressure is too low or if there is a leak. Indirect Tire Pressure Monitoring: When the air pressure in a tire decreases, the vehicle's weight causes that tire's rolling radius to become smaller, resulting in a faster rotation speed compared to the other wheels. By comparing the differences in rotation speeds between the tires, the system monitors tire pressure. Indirect tire pressure monitoring systems essentially rely on calculating the rolling radius of the tires to monitor pressure. Tire Intelligent Monitoring System: This system combines the advantages of the two systems mentioned above. It is equipped with direct sensors in two diagonally opposite tires and includes a 4-wheel indirect system. Compared to a fully direct system, this hybrid system can reduce costs and overcome the limitation of indirect systems, which cannot detect when multiple tires simultaneously have low pressure. However, it still cannot provide real-time data on the actual pressure in all four tires, as a direct system can.

14

5

Share

What should drivers pay attention to when driving on mountain roads?

How to Prioritize Rescheduling After Failing Subject 3 Once?

Where is the car temperature sensor located?

What are the reasons why cars have difficulty starting in summer?

Can Electric Vehicles Be Charged in the Rain?

How to Use an AUX Audio Cable in a Car?

How Often Should the Tire Pressure Sensor Battery Be Replaced?

What is the Automatic Parking Function?

What are the symptoms of a bad motorcycle clutch plate?

How Many Seconds Does It Take for the Ford Mustang to Accelerate from 0 to 100 km/h?

Do You Need to Press the Clutch When Shifting Gears in a Car?