What is the general warranty period for brake discs?

Can National V Emission Standard Cars Still Be Registered in Heze?

National V emission standard cars cannot be registered in Heze. Below are the specific details about National V models: 1. Identification: The National V emission standard is marked with a Roman numeral "V". 2. Emission Levels: Under the National V standard, the carbon monoxide emission limit for gasoline vehicles is 1,000 mg/km. Compared to the National IV standard, the sulfur content in National V gasoline is reduced by 80%. For vehicles of the same displacement, the sulfur dioxide emissions from five National V cars are equivalent to those from one National IV car. Compared to the National IV standard, the new National V standard reduces nitrogen oxide emissions by 25% for light-duty vehicles and by 43% for heavy-duty vehicles.

7

1

Share

Why Does a Car Battery Run Out of Power?

Car batteries may suddenly run out of power due to depleted battery charge, insufficient electrolyte levels, internal battery failures, or damage. Typically, a car battery has a lifespan of around 3 to 4 years, which can vary depending on driving habits and road conditions. Temporary power loss caused by leaving headlights on or listening to music with the engine off can often be resolved by removing the battery for recharging. More details are provided below: 1. Wipe the exterior of the battery with a damp cloth to remove dust, grease, white powder, or other contaminants that may cause leakage from the terminals (positive and negative poles). Regular cleaning prevents the buildup of acidic corrosion powder on the terminals, extending the battery's lifespan. 2. Open the battery's water-filling caps and check whether the water level is within the normal range. Most batteries have upper and lower level markers for reference. If the water level is below the lower marker, add distilled water. In emergencies, filtered tap water can be used if distilled water is unavailable. Do not overfill—the water level should be between the upper and lower markers. 3. Check whether the battery is charging properly. Using a multimeter, measure the voltage across the battery terminals after starting the engine. A reading above 13V is considered normal. If the charging voltage is too low, have a professional inspect the charging system. Car batteries generally last 2 to 3 years. Beyond this period, drivers should pay extra attention to battery maintenance and replace it promptly if necessary to avoid potential hazards.

18

4

Share

What is the model of a tractor driver's license?

Tractor driver's licenses are categorized into the following models: 1. Medium-sized tractors (with an engine power exceeding 14.7 kilowatts), the license code for permitted operation is "G". 2. Small steering wheel tractors (with an engine power below 14.7 kilowatts), the license code for permitted operation is "H". 3. Hand tractors, the license code for permitted operation is "K". Here are some additional details: Precautions for operating a tractor include: 1. Parking location: It is best to park in a garage, but avoid storing it with fertilizers or pesticides to prevent corrosion from volatile substances. If parking outdoors, choose a well-ventilated area on higher ground and cover it with plastic sheets or other protective materials to prevent mechanical damage and rust. 2. Supporting the chassis: Elevate the tractor using wooden blocks or bricks to reduce the load on the tires. If the chassis is not supported, the tires should be inflated 10%—20% more than usual, and regular checks and inflation are necessary to avoid underinflation.

10

5

Share

Which gear is best for making a U-turn in Subject 3?

In the Subject 3 driving test, there is no specific requirement for which gear to use when making a U-turn. Generally, you can choose either first or second gear. Using first gear is riskier than second gear, so for safety, it's advisable to use second gear. Detailed steps for making a U-turn in Subject 3: 1. Upon hearing the instruction "Please make a U-turn ahead," the candidate should activate the left turn signal for at least three seconds, carefully observe the surroundings, and safely yield to oncoming traffic. The U-turn must be performed in second gear or lower, with the vehicle speed reduced to below 20 km/h. If necessary, first gear with half-clutch can be used. The sequence of operations is: signal, look, brake, downshift, and U-turn. 2. Pay attention to yielding to vehicles from both directions and avoid disrupting normal traffic flow. You may stop and wait before making the U-turn to ensure it can be completed in one smooth motion without stopping midway due to improper operation. When turning the steering wheel, maintain a steady and moderate technique to avoid turning too early, too late, or with excessive or insufficient angles. 3. Upon hearing the instruction "U-turn completed," the test for this section is considered finished. 4. If there is a crosswalk during the U-turn, the vehicle must pass the crosswalk before turning. Do not make the U-turn or stop on the crosswalk.

16

3

Share

Does the dashboard light up when stepping on the brake?

When the brake pedal is pressed and the dashboard light comes on, it may indicate a brake pad warning. Normally, this indicator light remains off, but it illuminates when there is a malfunction or excessive wear in the brake discs. Below is some information about dashboard lights: 1. Yellow light: Yellow is a warning light, but it indicates a less severe issue. You can continue driving, but immediate inspection and repair are needed. 2. Green light: Green is an indicator light. In automatic transmissions, to prevent accidental gear shifting, there is a brake lock that locks the gear if the brake is not pressed. Simultaneously, the green light on the dashboard will illuminate and can be turned off by pressing the brake. Additional information: The principle of braking is to convert the vehicle's kinetic energy into heat energy, which is then dissipated. The kinetic energy comes from the power provided by the engine, which requires fuel combustion to generate the necessary work.

15

4

Share

What Issues Should Be Noted When Driving at Night?

When driving at night, pay attention to the following: 1. Prepare before departure: Get adequate rest before driving to ensure you are well-rested and energetic; perform necessary checks and maintenance, including inspecting all vehicle lights and electrical equipment, checking oil, water, and tire pressure, examining cargo loading and securing, and troubleshooting any parts or components that may affect driving safety to eliminate hazards and ensure all components function reliably; carry essential tools, common spare parts, and a work light for emergencies. 2. Approaching intersections: When encountering a continuously flashing yellow warning signal at an intersection while driving at night, reduce speed, stay alert, and proceed only after confirming safety. Drivers must remain vigilant and avoid cutting into lanes. 3. Slow down in poor road conditions: If you encounter construction signal lights while driving, slow down. In hazardous or unclear road conditions, stop to assess the situation before proceeding. 4. Avoid tailgating: When driving at night, visibility is often worse than during the day, and drivers frequently encounter dangerous or emergency situations. Therefore, drivers must be prepared to stop at any time. To avoid hazards, maintain a safe following distance to prevent rear-end collisions.

4

1

Share

What is the general warranty period for brake discs?

Can National V Emission Standard Cars Still Be Registered in Heze?

Why Does a Car Battery Run Out of Power?

What is the model of a tractor driver's license?

Which gear is best for making a U-turn in Subject 3?

Does the dashboard light up when stepping on the brake?

What Issues Should Be Noted When Driving at Night?

What's the difference between replacing and repairing a cracked bumper?

What is the difference between National IV and National V vehicle emission standards?

How to Transfer a Driver's License from Another Location Back to the Local Area?

Why do car lights sometimes flicker?