What is the principle of a car charger?

What are the contents of the visual inspection before using the seat belt?

The contents of the visual inspection before using the seat belt include checking whether the webbing has deteriorated, whether the buckle has cracks, and whether the spring mechanism of the buckle functions properly. Correct usage method of the seat belt: Gently pull the tongue and pass the seat belt across the chest and hips, checking for any knots or twists. Insert the tongue into the buckle until you hear the sound of engagement. The lumbar seat belt must fit snugly against the pelvis and be fastened as low as possible. Adjust the hip section of the seat belt to ensure it is tightly connected to the hips. To release, press the button on the seat buckle to open the tongue and loosen the seat belt. The retractor mechanism is located on the tongue side, allowing the seat belt to automatically tighten. Importance of the seat belt: It protects the driver and passengers by restraining them in their seats during emergency braking, preventing them from being thrown forward and thus avoiding secondary impact injuries. In the event of a collision or when emergency braking is applied, the pre-tensioner device instantly retracts, tightening any slack in the seat belt and securing the occupants firmly in their seats to prevent secondary collisions. If the retraction force exceeds a certain limit, the force limiter device will appropriately loosen the seat belt to maintain stable chest pressure. Therefore, the car seat belt serves to restrict movement and absorb impact energy, mitigating inertial forces and reducing or preventing injuries to the occupants.

20

1

Share

What Causes the Engine Coolant to Always Decrease?

Engine coolant may decrease due to normal consumption; corrosion and deterioration of the cylinder head gasket; coolant leakage; damage to the radiator cylinder gasket; or loosening of the overflow tank, water pump joint surfaces, and pipe connections in the cooling system. How to determine if coolant is low: Observe the coolant warning light on the dashboard. If it lights up, it is likely due to low coolant, although it could also be caused by excessively high cylinder temperatures. Check the coolant reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving and promptly add coolant. Inspect the water level markings on the coolant tank. The normal coolant level should be between the maximum and minimum marks. To determine if coolant is low, check the markings. If the coolant level is below the minimum mark, it indicates a shortage. Coolant replacement interval: For vehicles that operate for long periods, such as taxis, high-quality coolant should generally be replaced once a year. For vehicles with shorter operating times, replacement can be done every two years or every 30,000 kilometers. To prevent excessive foam formation, which reduces the heat exchange efficiency between the coolant and engine components, ensure the product is within its validity period when adding it. Long-life coolant can remain effective for up to three years. If suspended particles, sediment, or signs of deterioration or discoloration are observed in the coolant, replace it immediately and clean the system.

3

Share

Should You Use First or Second Gear When Going Uphill in an Underground Parking Lot?

Using first gear on a steep underground parking garage ramp is the safest option, as this gear provides the maximum torque output while maintaining a slower speed, allowing the driver to fully control the vehicle. Car Gear Positions: Automatic transmission cars have gear positions labeled P, R, N, D, and S. P stands for Park, where the drive wheels are mechanically locked when the gear lever is moved to this position; R is Reverse, used when backing up; N is Neutral, where the transmission is not engaged in any gear; D is Drive, where the transmission automatically shifts gears within the engine speed range, with shift points depending on engine load, driving style, and speed; S is Sport mode, where the transmission shifts at higher engine speeds than in D mode, maximizing engine power. Automatic Transmission: Most automatic transmission vehicles come with hill-start assist, which maintains braking for a short period when the accelerator is pressed deeply to prevent rolling back. Pressing the accelerator again allows the car to start moving. Manual Transmission: Press the brake and clutch, start the engine, shift into first gear, and slowly release the clutch. When the car begins to vibrate slightly, release the brake and immediately press the accelerator to add throttle. As the car moves forward, fully release the clutch to complete the starting process.

3

0

Share

Can a Temporary ID Be Used for the Driving Test (Subject 2)?

A temporary ID can be used for the Subject 2 driving test. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," first-time applicants must submit their identity proof. Although a temporary ID is valid for only three months, it still serves as legal identity proof, equivalent to a permanent ID. The Subject 2 test typically requires magnetic card swiping, which a temporary ID cannot support. Candidates using a temporary ID must inform the test center staff in advance. Subject 2, also known as the small road test, is part of the motor vehicle driving license assessment. It evaluates field driving skills and includes five mandatory test items: reversing into a garage, parallel parking, stopping and starting on a slope, turning at a right angle, and driving through curves. According to Article 25 of the "Regulations on the Application and Use of Motor Vehicle Driving Licenses" (Ministry of Public Security Order No. 123), as of June 1, 2021, the stopping and starting on a slope test item is no longer required for C2 and C5 license applicants. The test is scored out of 100, with deductions of 20, 10, or 5 points for errors, and a passing score of 80. Below are the details: Reversing into a Garage: Reverse from the starting point on the right into the garage, then drive to the left and reverse in again before returning to the starting point. No stopping is allowed during the process. Parallel Parking: Drive the car parallel to the garage, then reverse into it without any pauses. Turning at a Right Angle: Complete the turn in one go without crossing lines or stopping. Stopping and Starting on a Slope: Drive to the slope test area, ensuring the front wheels stop on the line. After passing, proceed to start on the slope without rolling back. Any mistake may result in point deductions or failure. Driving Through Curves: Navigate a lane with two turns exceeding 40 degrees in one go without stopping, crossing lines, or leaving the lane. Subject 2 Test Tips: Adjust the seat and mirrors to your preference and fasten your seatbelt before starting. For parallel parking, find the right angle quickly, steer promptly, and coordinate with the car's speed. On the slope, engage the handbrake, signal left when starting, release the handbrake, and balance the clutch and throttle to avoid stalling or rolling back. For right-angle turns, react swiftly to the reference point while matching the car's speed to prevent deviation. For curve driving (S-turns), the safest approach is to slow down, though skilled drivers may pass quickly. When reversing into a garage, control the speed, identify reference points, and make minor adjustments if needed by checking the mirrors.

17

0

Share

Does the BMW 320 transmission fluid need to be changed?

BMW 320 transmission fluid needs to be replaced. Replacement interval: The recommended replacement interval for BMW 320 transmission fluid is every three years or 60,000 kilometers. Timely replacement of transmission fluid can reduce transmission failures. Circulation machine replacement: New transmission fluid is added inside the circulation machine, and the machine's pipes are connected to the transmission's oil lines. The new transmission fluid pushes out the old fluid under pressure, resulting in a cleaner oil line flush. The more new transmission fluid is used, the cleaner the oil lines become. A single transmission fluid replacement using the circulation machine typically requires about 10 liters of fluid.

8

1

Share

What is the engine displacement of the Outback?

Outback's engine is a 2.5-liter four-cylinder naturally aspirated. Here is an introduction to Outback's engine: 1. Outback uses a four-cylinder horizontally opposed engine. 2. The cylinders are horizontally placed. 3. The pistons move horizontally. 4. The center of gravity is lower. Here are the advantages of using a horizontally opposed engine: 1. Cars with horizontally opposed engines have high cornering speeds, and the body roll is minimal when taking corners quickly. 2. Cars with horizontally opposed engines offer a different driving feel compared to conventional cars. 3. The Subaru Outback is a midsize SUV, and using a horizontally opposed engine in an SUV significantly enhances handling.

6

2

Share

What is the principle of a car charger?

What are the contents of the visual inspection before using the seat belt?

What Causes the Engine Coolant to Always Decrease?

Should You Use First or Second Gear When Going Uphill in an Underground Parking Lot?

Can a Temporary ID Be Used for the Driving Test (Subject 2)?

Does the BMW 320 transmission fluid need to be changed?

What is the engine displacement of the Outback?

Is the fuel consumption of Wuling Capgemini 2021 high?

What is the weight of the CFMOTO 650 G?

Which has more horsepower, the Audi Q5 or the BMW 525?

What Causes the Engine Coolant to Always Be Low?