What is the method of pressing the clutch before braking?

What are the contents of Subject 1 and Subject 4?

Both subjects are theoretical exams. Subject 1 focuses on driving knowledge, while Subject 4 emphasizes safety knowledge. The questions in Subject 4 often do not require rote memorization, as the correct answers can be deduced through practical reasoning. Subject 1, however, includes more memory-based content such as traffic police hand signals and road sign markings. In this regard, Subject 1 is relatively more challenging. Exam content for Subject 1: Basic knowledge of motor vehicles; laws, regulations, and road traffic signals; fundamentals of safe and civilized driving; basic knowledge related to motor vehicle operation. Exam content for Subject 4: Requirements for safe and civilized driving operations; safe driving knowledge under adverse weather and complex road conditions; emergency handling methods for situations like tire blowouts; and knowledge on post-traffic accident procedures.

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What is the minimum ground clearance of the Lynk & Co 03?

The minimum ground clearance of the Lynk & Co 03 is 120mm. The following are the characteristics of minimum ground clearance: 1. Minimum ground clearance refers to the distance between the lowest point of the vehicle (excluding the wheels) and the supporting surface when the vehicle is fully loaded and stationary, which is used to characterize the vehicle's ability to pass over obstacles such as stones and stumps without collision. 2. The smaller the ground clearance, the worse the ability to pass over obstacles. Sedans generally travel on flat urban roads, so they have a small ground clearance. Off-road vehicles have a larger minimum ground clearance to pass over larger obstacles. 3. The larger the minimum ground clearance, the stronger the vehicle's ability to pass over obstacles or uneven ground, but the higher the center of gravity, which reduces stability; the smaller the minimum ground clearance, the weaker the vehicle's ability to pass over obstacles or uneven ground, but the lower the center of gravity, which can increase stability.

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Why can't the car key be remotely controlled after replacing the battery?

After replacing the battery, the car key may not be able to be remotely controlled due to the following reasons: the remote control is damaged; the spare key has been stored for a long time, and the battery is depleted, causing the remote control to be underpowered; the battery was not installed in time after being removed during replacement; or a momentary short circuit occurred when removing or installing the battery. Below are some functions of the car key: Remote window opening function: This is a very practical hidden feature of the car key. In summer, when the car has been exposed to the sun and the windows are closed, the interior can become stuffy and emit unpleasant odors. In such cases, holding down the unlock button can open the windows for ventilation. Automatic trunk opening: The car trunk is a great place to store various items, and sometimes after parking and turning off the engine, the driver may remember something left in the trunk. The remote car key can be very useful here—holding down the trunk unlock button can open the trunk. Opening only the driver's door: Sometimes, the car may be parked in a crowded area, and using the remote key to unlock all doors can pose a certain risk. However, when only the driver is in the car, the remote key can be used to open only the driver's door.

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Can You Make a U-Turn When the Left-Turn Signal Is Red?

Whether you can make a U-turn when the left-turn signal is red depends on whether there is a no-left-turn sign at the intersection and whether there is a no-U-turn sign at the gap. The following are detailed explanations: No-left-turn sign at the intersection: If there is a no-left-turn sign at the intersection, you cannot make a U-turn when the left-turn signal is red; if there is no no-left-turn sign at the intersection, you can make a U-turn when the left-turn signal is red. No-U-turn sign at the gap: Before reaching the stop line, if there is a dashed-line gap in the middle of the road, you can make a U-turn as long as there is no no-U-turn sign at the gap. If there is a no-U-turn sign or a solid line at the gap, you must proceed to the stop line position to make a U-turn. When making a U-turn, be careful not to cross the intersection stop line or the central solid yellow line, and the very important prerequisite is not to affect the passage of vehicles and pedestrians. When making a U-turn, you must yield to oncoming vehicles. If you do not follow the regulations, you will be fined and deducted 3 points.

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Does Tire Pressure Drop in Cold Weather?

Tire pressure does drop in cold weather. As temperatures decrease, the air inside the tires is affected by the temperature, leading to a reduction in tire pressure. In cold weather, it's advisable to slightly increase the tire pressure of car tires. Based on the standard tire pressure, it should be appropriately raised by about 0.2 bar. Hazards of Low Tire Pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; Causes the steering wheel to feel heavy and may lead to deviations, which are factors detrimental to driving safety; Increases the movement of various parts of the tire, causing abnormal heating due to excessive rolling; Reduces the functionality of the cord and rubber, leading to delamination or cord breakage, and excessive friction with the rim causing damage to the bead area and abnormal wear; The friction between the tire and the ground increases significantly, causing a sharp rise in tire temperature, softening of the tire, and a rapid decrease in strength. High-speed driving under these conditions may result in a tire blowout; Increases tire body deformation, making the tire side prone to cracks, and generates flexing movements, leading to excessive heat, promoting rubber aging, fatigue of the cord fabric layer, and cord breakage. It also increases the tire's contact area with the ground, accelerating shoulder wear.

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What rare metals are contained in a three-way catalytic converter?

A three-way catalytic converter can extract precious metals such as platinum (Pt), rhodium (Rh), and palladium (Pd), while the substances used in the catalyst coating are rhodium nitrate, palladium nitrate, and platinum nitrate. Composition of a three-way catalytic converter: A three-way catalytic converter generally consists of four parts: the shell, damping layer, substrate, and catalyst coating. Shell: Made of stainless steel to prevent oxide scale from falling off, which could clog the substrate. Damping layer: Composed of a gasket or wire mesh pad, it serves to seal, insulate, and secure the substrate. To protect the substrate from damage caused by vibration, thermal deformation, and other factors, the gasket is made of expanded mica and aluminum silicate fibers, bonded together with an adhesive. Substrate: Made of honeycomb-shaped ceramic material, though many also use metal (including stainless steel) materials. Catalyst: Composed of precious metals such as platinum, rhodium, and palladium, sprayed onto the substrate to form the purifying agent. Lifespan of a three-way catalytic converter: The lifespan of a three-way catalytic converter is generally between 80,000 to 100,000 kilometers. The actual lifespan depends on the vehicle's usage conditions, and it is also influenced by the quality of fuel used and the driving environment.

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What is the method of pressing the clutch before braking?

What are the contents of Subject 1 and Subject 4?

What is the minimum ground clearance of the Lynk & Co 03?

Why can't the car key be remotely controlled after replacing the battery?

Can You Make a U-Turn When the Left-Turn Signal Is Red?

Does Tire Pressure Drop in Cold Weather?

What rare metals are contained in a three-way catalytic converter?

Why does the Q5's brakes squeak?

What are the body dimensions of the GAC Trumpchi GM8?

Why Shouldn't You Coast a Car in Neutral Gear?

How many kilometers can a run-flat tire travel after a puncture?