What is the general height of a business vehicle?

Why Can't You Start the Car in Gear?

If you fully depress the clutch, starting the car in gear won't cause any damage to the vehicle. However, if you don't press the clutch or fail to control the half-clutch position accurately, directly starting the engine can easily damage the engine and brake components. It may also cause the vehicle to lurch forward, increasing the risk of accidents. When starting on a steep slope, engaging first gear beforehand prevents the vehicle from rolling backward, but you still need to depress the clutch while starting. Here's some additional information: 1. Ignition: The ignition switch of a motor vehicle controls the ignition system, allowing you to freely turn on or off the main circuit of the ignition coil. Ignition methods include mechanical key ignition, remote start ignition, and push-button start ignition. Different vehicle models may have varying ignition methods, so it's important to use the appropriate ignition switch based on your vehicle's specifications. 2. Clutch Operation: When starting in neutral gear without pressing the clutch, the clutch remains engaged with the transmission. The engine's power is directly transmitted to the transmission, but since the vehicle is in neutral, no power is delivered to the wheels. Therefore, starting in neutral without pressing the clutch is safe. However, if you attempt to start the car while in gear without pressing the clutch, the engine's power remains connected to the transmission, causing the vehicle to lurch forward suddenly, which is dangerous. Therefore, when driving a manual transmission vehicle, it's essential to develop the habit of ensuring the gear is in neutral by shaking the gear lever left and right and always pressing the clutch before starting the engine.

9

4

Share

What is the Principle Behind Speed-Reducing Glass in Cars?

Car glass cannot actually reduce speed. The so-called "speed-reducing glass" is not a braking system, but rather refers to the phenomenon where drivers and passengers perceive the vehicle's speed to be lower than the actual speed. However, this perception is not caused by the glass itself. Human visual perception of motion is determined not by linear velocity but by angular velocity. The greater the angular deviation between an object's movement direction and the observer's line of sight, the higher the object's angular velocity appears, making the perceived speed faster, and vice versa. When driving, the driver judges speed relative to the road surface—the greater the angle between the driver's line of sight and the road, the higher the perceived acceleration of the car's movement, making the speed appear faster. Additional Information: Car Glass Maintenance Tips: 1. During regular glass maintenance, choose appropriate windshield washer fluid based on the season and weather conditions. When the windshield appears blurry, cleaning it with the right washer fluid can significantly improve clarity. 2. If the glass causes excessive glare at night, it can also be wiped with washer fluid. Additionally, during highway driving or in dusty conditions, washer fluid is consumed quickly, so remember to refill it promptly. 3. For cleaning the front windshield, always use designated windshield cleaning solutions. These solutions contain components that dissolve grease and improve the glass's wetting properties, helping to maintain the glass. 4. Avoid using the wipers when there is snow, ice, hardened mud, or dry bird droppings on the glass, as this can damage the wiper blades, motor, and the glass itself.

18

5

Share

How to Deal with Foggy Windshield on Rainy Days?

Press the defog button, turn on the air conditioning (A/C) switch, set the temperature to the lowest, and turn on the external circulation to remove fog. Both cold and warm air can defog the car windows, but warm air is slower than cold air. The most effective method is to use cold air, which blows dry cold air directly onto the glass, preventing water vapor from condensing on the glass and achieving defogging. The method of using warm air is the same as cold air, but it should be noted that warm air should not be used for defogging on rainy days as it may initially increase fogging. When the car windows fog up, use external circulation. The reason for car window fogging: There is a certain temperature difference between the inside and outside of the car. If the temperatures inside and outside are different, the surface with the lower temperature will have a lower saturated vapor pressure than the surrounding environment, causing water vapor to gather on the glass surface and form tiny water droplets, resulting in fog. Methods to defog car windows: Air Conditioning Cooling: Use the air conditioning's cooling and dehumidifying function to reduce air humidity and remove fog. In summer, especially when multiple people enter the car without turning on the air conditioning in time, the exhaled air has high humidity, and the windshield will fog up quickly. At this time, turn on the air conditioning to blow cold air onto the windshield, using the dehumidifying function to remove the fog quickly. If the humidity is too high and the air conditioning is not effective, slightly open the windows to quickly reduce the humidity inside the car. Of course, combining this with the air conditioning will yield faster results. Air Conditioning Heating: Use the method of reducing the temperature difference to remove fog. In winter, use warm air to blow hot air onto the glass, quickly raising the temperature of the front glass and reducing the temperature difference between the inside and outside surfaces of the window. This can prevent excessive fogging on the windshield in time. However, it should be noted that the rear and side windows heat up slowly, so it takes longer to remove all the fog. Whether the air conditioning is automatic or manual, turning it on helps with dehumidification. Do not set the air conditioning temperature to the coldest position, as this may cause frost to form on the outside of the windshield over time. Spraying Anti-Fog Agents for Prevention: Spray a small amount of defogging agent on the car windows and wipe it clean to remove dirt and stains. While polishing the glass, a thin transparent protective film is formed, effectively preventing water vapor from condensing on the glass and forming fog, especially suitable for cold winters. Alternatives to anti-fog agents include dishwashing liquid, soapy water, glycerin, alcohol, or saltwater. After drying, wipe off excess fibers with chamois or a soft dry cloth. This can ensure the car windows remain fog-free for several days. Opening Windows for Airflow: If the fog inside the car is not heavy, you can open the windows on both sides to create airflow between the inside and outside of the car, reducing the temperature difference and gradually eliminating the fog. The principle of this method is the same as using cold air from the air conditioning. The downside of opening windows for airflow is obvious: it cannot be used in rainy or snowy weather, on highways, or when the fog is heavy. Rear Windshield Heating: Most cars have a rear windshield electric heating function. The button positions may vary, but the function is the same. Turn on the windshield heating switch, and the fog on the rear windshield will disappear in about a minute.

2

1

Share

Which gear should be used for overtaking in an automatic transmission car?

Automatic transmission cars can use either the D gear or the S gear for overtaking. Both D gear and S gear are commonly used positions in automatic transmissions. The D gear is the drive gear, designed to allow the car to freely select gears while moving forward. The S gear is the sport mode, where the transmission can shift freely but with delayed shift timing. An automatic transmission typically refers to the car's automatic gear-shifting mechanism, where the control system of the automatic transmission selects the appropriate gear based on the engine's speed and load during driving, replacing the driver's subjective judgment of timing and gear-shifting operations.

18

2

Share

What happens if the parking brake is not released while driving?

Consequences of driving with the parking brake engaged: 1. The rear brake discs overheat, producing a burning smell. In severe cases, the brake discs may turn red, leading to significant brake fade and reduced braking performance. 2. Severe wear on the brake pads, shortening their lifespan. 3. Noticeable increase in fuel consumption, sluggish acceleration, and a dragging sensation when releasing the throttle. 4. Uneven tire wear. Even on the same vehicle, the braking capacity of the four tires is not identical, resulting in uneven tire wear. 5. Increased temperature of the brake fluid, leading to reduced braking performance.

13

5

Share

What does unpaved road mean?

Generally refers to roads other than Class A or Class B highways. Below is more information about unpaved roads: 1. Introduction: Unpaved roads are those without surface materials like slabs or concrete bricks, directly consisting of concrete surfaces, asphalt roads, or even dirt roads, gravel roads, etc. 2. Paved roads: Unpaved roads are defined in contrast to paved roads. Paved roads with a thickness of 2.5~4cm are a widely used road structural layer, typically serving as the wearing course for multi-layer asphalt surfaces, thin overlays in maintenance and repair, and pavement for bridge decks.

6

0

Share

What is the general height of a business vehicle?

Why Can't You Start the Car in Gear?

What is the Principle Behind Speed-Reducing Glass in Cars?

How to Deal with Foggy Windshield on Rainy Days?

Which gear should be used for overtaking in an automatic transmission car?

What happens if the parking brake is not released while driving?

What does unpaved road mean?

How many points are deducted for a driver violating traffic signals while operating a motor vehicle?

Can the Annual Inspection Pass with the Airbag Light On?

What is the name of Hyundai's sports car?

Does Converting to Natural Gas Affect the Engine?