What are the components of a car air conditioning system?

Is Waxing Good for Cars?

Waxing is beneficial for cars. Benefits of waxing: The primary functions of waxing include waterproofing, protection against acid rain, effectively preventing paint aging, anti-static properties, dust resistance, and more. Additionally, car wax can provide a polishing effect. It prevents static electricity in cars, which can be caused by synthetic fibers or silk fabrics, as well as friction with dust particles in the air. Regardless of the source, static electricity can be troublesome for drivers. Therefore, car wax not only prevents static electricity but also effectively blocks the friction damage caused by air and dust on the paint surface. Drawbacks of waxing: It can wear down the paint surface over time. Long-term waxing essentially means gradually wearing down the paint, as waxing involves polishing with microscopic particles. It is prone to oxidation because car wax uses petroleum as a solvent, making it susceptible to oxidation, which means it cannot provide long-term protection for the car paint once oxidized.

11

2

Share

What is the Difference Between All-Season Tires and Regular Tires?

The difference between all-season tires and regular tires lies in their appearance: all-season tires have an "AT" marking on the tread, while regular tires have wider tread grooves, offering better drainage, making them more suitable for use in rainy summers. All-season tires, also known as multi-purpose tires, are designed to adapt to various road conditions and are often used in complex and demanding environments. Below is some relevant information about tires: 1. Function: Tires are one of the key components of a vehicle, directly in contact with the road surface. Together with the vehicle's suspension system, they help absorb shocks during driving, ensuring a comfortable ride and smooth handling. They also maintain good traction between the wheels and the road, enhancing the vehicle's traction, braking, and off-road capabilities. 2. Classification: Vehicle tires can be categorized by their use into passenger car tires and truck tires. Passenger car tires are mainly used for inflatable tires on passenger vehicles, while truck tires are designed for trucks, buses, and trailers. Based on their structure, vehicle tires can also be divided into pneumatic tires and solid tires. Most modern vehicles use pneumatic tires, while solid tires are only used on low-speed vehicles or heavy-duty trailers operating on main roads with asphalt concrete surfaces.

19

5

Share

How to Replace the Headlight Bulb of Lavida?

Steps to replace the headlight bulb of Lavida: 1. Unplug the power connector of the bulb to disconnect the power supply; 2. After unplugging the power connector, remove the waterproof cover behind the bulb; 3. Take out the bulb from the reflector; 4. Place the new bulb into the reflector, aligning it with the fixing slots—there are several fixing slots on the bulb base; 5. Replace the waterproof cover and reconnect the headlight power connector. To install, follow the reverse steps of removing the old bulb: hold the wire clip, insert the bulb into the reflector, align it with the installation position, and then release the clip to secure the bulb. The dimensions of the 2018 all-new Lavida are 4670mm in length, 1806mm in width, and 1474mm in height, with a wheelbase of 2688mm; the 2017 Lavida measures 4605mm in length, 1765mm in width, and 1460mm in height, with a wheelbase of 2610mm.

3

0

Share

How to Brake Smoothly While Driving?

Here are techniques for smooth braking under different circumstances: 1. Following distance and preventing "kiss" technique. When noticing the vehicle ahead starts braking (brake lights illuminate), place your foot on the brake pedal, apply pressure evenly, and decelerate smoothly until matching the speed of the front vehicle. Maintain the brake pedal position, then observe the speed change of the front vehicle to adjust braking force. If the front vehicle's speed stops decreasing, you can slowly release the brake pedal, accelerate gently, and continue maintaining the same speed as the front vehicle for smooth following. 2. Emergency braking. Immediately press the brake pedal fully to the floor while preparing for an emergency lane change. 3. Light braking over long distances. The skillful technique of light braking over long distances ensures passengers feel no jolt, requiring accurate anticipation of road and traffic conditions ahead. Begin by releasing the accelerator pedal, then perform braking based on distance and speed. 4. Braking on dirt or sandy roads. Braking on dirt or loose gravel surfaces remains hazardous, not just on rural roads but even on urban asphalt surfaces where construction may leave loose soil or sand particles along the edges. Extreme caution is advised when performing emergency braking maneuvers. 5. Preventing "nose-dive" braking. Given sufficient stopping distance, press the brake pedal slowly and continuously to decelerate evenly. As the vehicle comes to a stop, gradually release the brake pedal until fully disengaged when stationary. 6. Hill braking. Uphill braking techniques are similar to those on level ground, but due to the deceleration effect from the vehicle's weight, less braking force is required compared to flat roads. Brake gently uphill, even more so than on level ground, but release the brake pedal quicker to prevent excessive speed loss. For manual transmission vehicles, rapid speed reduction can easily lead to inappropriate gear selection, with too low a gear causing vehicle shuddering. Timely gear shifting after uphill braking is essential. 7. Emergency braking in rain. Exercise caution with emergency braking during rainy conditions. Although most modern vehicles are equipped with ABS systems, significantly reducing wheel lock-up incidents, it's advisable to control speed carefully in wet weather and use emergency braking maneuvers judiciously.

18

2

Share

Can I make an appointment immediately after canceling Subject 1?

After canceling the appointment for Subject 1, you can immediately make another appointment. Each student has three opportunities to cancel appointments for each subject, so canceling in advance is a legitimate and reasonable operation and will not affect subsequent exam appointments. The content of the Subject 1 exam includes basic knowledge of motor vehicles; laws, regulations, and road traffic signals; basic knowledge of safe driving and civilized driving; and basic knowledge related to motor vehicle driving operations. The process for the Subject 1 exam is as follows: First, follow the staff's arrangements to receive your driving training file in order in the waiting area; carry and present your ID card for inspection by the supervising officer. Note that mobile phones must be turned off when entering the exam area, no loud noise is allowed, and law textbooks are not permitted in the exam area (or must be kept in your bag). After the exam, keep your ID card safe and submit the file to the "Document Submission Window" at the front of the exam room. Students who pass the exam will sign under the guidance of the staff at the exit before leaving the exam room. Students who fail the exam can leave the exam room immediately and wait for notification from their driving school staff about the retake time.

18

2

Share

Is 92 Octane Gasoline Lead-Free?

Currently, all gasoline sold in the market is lead-free, with octane ratings such as 92, 95, and 98. Understanding Gasoline Octane Ratings: The primary difference between gasoline with different octane ratings lies in their anti-knock performance, which is a crucial indicator for evaluating fuel quality. 92 octane gasoline has an octane rating of 92 and is suitable for mid-range vehicles (with relatively low compression ratios). 95 octane gasoline consists of 95% isooctane and 5% n-heptane, and high-octane gasoline should be used when the engine has a high compression ratio. 98 octane gasoline has an octane rating equivalent to a mixture of 98% isooctane and 2% n-heptane. The advantages of 98 octane gasoline are 'two highs and two lows': higher anti-knock performance and power output, along with lower harmful substances in the gasoline and reduced exhaust pollution. Precautions for Refueling: Do not arbitrarily switch to a different octane rating. Switching to a lower octane rating may cause premature combustion of the gasoline, leading to engine knocking. Additionally, incomplete combustion of the gasoline can result in increased carbon deposits, which may clog the fuel lines and injectors, leading to reduced vehicle power and increased fuel consumption.

10

3

Share

What are the components of a car air conditioning system?

Is Waxing Good for Cars?

What is the Difference Between All-Season Tires and Regular Tires?

How to Replace the Headlight Bulb of Lavida?

How to Brake Smoothly While Driving?

Can I make an appointment immediately after canceling Subject 1?

Is 92 Octane Gasoline Lead-Free?

What is the normal fuel consumption for domestic SUVs?

What Causes the Jerking When Refueling a Natural Gas Vehicle?

How Long After Passing Subject One Can You Take Subject Three?

How Long Can You Use Temporary License Plates Before Switching to Permanent Ones?