What are the precautions for novice drivers on the road?

How to Renew a Driver's License After Age 70?

"Regulations on the Application and Use of Motor Vehicle Driver's Licenses": The new regulations for driver's license renewal after age 70 state that holders must undergo an annual physical examination and submit a physical condition certificate within 30 days after the end of each scoring cycle. Additionally, individuals aged 60 and above are not permitted to drive vehicles requiring Class A or B licenses. Renewal Considerations: During the renewal process, the vehicle management office will inspect the vehicle's lighting. If the lights are found to be too dim or too bright, the vehicle will be deemed unqualified and will not pass the renewal inspection. If the lights are too dim, check the lighting circuit and bulbs for aging and replace the relevant parts if necessary. If xenon headlights have been installed, it is recommended to revert to the original headlights before the renewal inspection to pass the test.

13

3

Share

Who is the Founder of Internal Combustion Engine Technology?

The inventor of the internal combustion engine is Karl Benz. Below is a detailed introduction to automotive internal combustion engines: 1. Overview: An internal combustion engine is a type of power machinery and a thermal engine that directly converts the heat energy released by burning fuel inside the machine into mechanical power. In a broad sense, internal combustion engines include not only reciprocating piston engines, rotary piston engines, and free-piston engines but also rotary turbine jet engines. However, the term 'internal combustion engine' usually refers to piston-type internal combustion engines. 2. Principle: Piston-type internal combustion engines mix fuel and air, which are then burned inside their cylinders, releasing heat that generates high-temperature, high-pressure gas. The expansion of this gas pushes the piston to perform work, which is then output as mechanical work through a crankshaft linkage or other mechanisms to drive machinery. Common types include diesel and gasoline engines, which convert internal energy into mechanical energy by changing internal energy through work.

2

0

Share

Does accidentally restarting the engine cause damage?

Accidentally restarting the engine can cause certain damage to the starter motor and ignition coil. When the engine is already running, restarting it will cause the starter motor to grind, typically damaging the starter gear of the starter motor and the flywheel ring gear of the engine. However, this damage is limited to the flywheel ring gear and the starter pinion, leading to excessive wear on the starter components, and does not affect critical parts like the engine and transmission. Relevant information about the engine is as follows: 1. Introduction: The car engine is the device that provides power to the vehicle, serving as the heart of the car. It determines the vehicle's performance, fuel efficiency, stability, and environmental friendliness. 2. Classification: Depending on the power source, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines, among others.

4

0

Share

What to Do When Asked to Start in Subject 3 but There's a Car in Front?

Subject 3 asks to start but there is a car in front of the coping methods are as follows: 1. Listen to the examiner's command: If there is a vehicle in front after the voice command is issued, see what command the examiner gives. Just follow it. 2. Stop and wait: If there is a car in front, you can choose to stop outside the test section and wait for it to go far. When stopping, pay attention to shifting out of gear and pulling up the handbrake. When starting, you don't need to press the start button, but you must start in first gear. If you see a car in front in advance, you can press the clutch to slow down. 3. Quickly turn on the turn signal and drive: If you need to perform an action and a car suddenly appears, you should turn on the turn signal in the fast lane and pass on the right side. If you are in the motor vehicle lane, pass on the left side, remember to turn on the turn signal. Generally, the coach will notify the test center in such unexpected situations and adjust the test sequence.

11

3

Share

What Causes Abnormal Noises in the Chassis When Starting the Vehicle?

Reasons for abnormal noises in the chassis when starting the vehicle: 1. The internal gears of the starter become stiff or stuck, causing: (1) The starter rotates, driving the flywheel to rotate and start the engine. At this point, the engine speed is driven by the starter, so the engine speed is lower than the starter speed. (2) When the engine speed after starting exceeds the starter speed, manually operate the ignition switch to cut off the power and turn off the starter. (3) Due to excessive dirt inside the starter and ineffective lubrication, the flywheel engine drives the starter to operate at its own speed. (4) Due to the speed difference between the two, the starter will produce abnormal noises. When the starter and engine are in a hot state, this noise will cease, but each severe start will still produce noise. 2. Clutch malfunction: If there is an issue with the clutch, a clunking noise may occur when the car starts.

14

2

Share

Which is more fuel-efficient, 1.4T or 1.8L?

1.4T engines are more fuel-efficient than 1.8L engines due to their smaller base displacement and the assistance of turbocharging, which allows for more complete combustion of gasoline. On average, the combined fuel consumption of a 1.4T engine is about 0.5L-1L lower than that of a 1.8L engine. The 'T' stands for turbocharged engine, while 'L' represents a naturally aspirated engine. The 1.8L naturally aspirated engine has lower maintenance costs in the long run, whereas the 1.4T turbocharged engine offers quicker acceleration and more abundant power. Compared to turbocharged engines, naturally aspirated engines have the following advantages: 1. Mature technology: Naturally aspirated engines are very mature in technology, with a longer lifespan than most turbocharged engines. Sometimes, even when the car is scrapped, the naturally aspirated engine can still function properly. 2. Easy to handle: They offer more linear control, making them easier to handle, and are generally cheaper than turbocharged engines. 3. Reliable performance: Thanks to their mature technology, naturally aspirated engines are very reliable, with simpler and cheaper maintenance requirements, and they do not demand high-quality engine oil.

7

3

Share

What are the precautions for novice drivers on the road?

How to Renew a Driver's License After Age 70?

Who is the Founder of Internal Combustion Engine Technology?

Does accidentally restarting the engine cause damage?

What to Do When Asked to Start in Subject 3 but There's a Car in Front?

What Causes Abnormal Noises in the Chassis When Starting the Vehicle?

Which is more fuel-efficient, 1.4T or 1.8L?

Is the 700r16lt a fully steel-belted tire?

What is the ground clearance of the Enclave Plus?

Will a Plug-in Hybrid Vehicle Get Damaged If Not Charged for a Long Time?

Why is a second ignition not covered for water-damaged vehicles?