What does the driving license subject 4 test?

Can National III Trucks Still Undergo Annual Inspection?

National III trucks cannot undergo annual inspection. Below is a partial introduction to the National III policy: 1. Subsidy Policy: After the comprehensive implementation of the National VI standard in 2020, some first and second-tier cities have imposed traffic restrictions on National III emission vehicles within urban areas, further limiting the movement of National III vehicles. To encourage the early scrapping of National III vehicles, many regions have formulated subsidy policies as an incentive-based guidance method. However, these subsidies are time-sensitive, with the amount decreasing as time passes. 2. Implementation: With the enforcement of the National VI emission standard, it is stipulated that all vehicles sold must comply with the National VI emission A standard, which means that all National III vehicles need to be phased out before 2020. Therefore, some cities have successively introduced policies to phase out National III vehicles. For National III commercial diesel trucks, starting from 2019, they are no longer eligible for regular emission inspections, and National III trucks will be prohibited from passing annual inspections.

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Can I Pass the Annual Inspection with Xenon Headlights?

As long as the modified xenon headlights are equipped with bi-xenon projectors and do not have light scattering issues that could affect the safety of oncoming drivers, they can pass the annual inspection. Essential requirements for xenon headlights: 1. Projector Lens: The luminous intensity of xenon headlights ranges between 4000K~6000K, far exceeding regulatory standards. Therefore, xenon headlights must be equipped with a projector lens to reduce intensity for safe use. Otherwise, the brightness of xenon headlights would be like staring directly at the sun, posing a significant threat to other drivers and pedestrians. 2. Headlight Cleaning System: Xenon headlights have relatively poor light penetration. If dust or dirt adheres to the headlights, it can cause light refraction and scattering, affecting other drivers and pedestrians. Additionally, xenon headlights have weaker penetration, and dust can impair their illumination effectiveness. Therefore, vehicles equipped with xenon headlights must have a headlight cleaning system.

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How to Remove Yellow Stains on White Car Paint?

The causes and removal methods of yellow stains on white car paint are: 1. Dust and impurities: When driving in areas with heavy dust, dust and impurities can accumulate on the white paint surface. Some impurities are stubborn and cannot be removed with regular cleaning, such as asphalt and bird droppings. These substances have strong adhesion and require specialized cleaning agents for soaking, stain removal, and rinsing to completely eliminate them. 2. Paint aging: If the car paint is exposed to prolonged sunlight and rain without timely care, it can easily age and develop spots on the surface. Some cars parked for extended periods or exposed to acid rain may even suffer severe corrosion. In such cases, polishing wax should be used to grind and polish the affected paint surface.

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Which Model is the Entry-Level Mercedes-Benz?

Currently, the most entry-level model among domestically produced Mercedes-Benz vehicles is the Mercedes-Benz C-180K Classic. It is equipped with a 1.6L supercharged engine, delivering a maximum power of 115 kW and a maximum torque of 230 Nm, with a 0-100 km/h acceleration time of 9.1 seconds. Relevant information about the turbocharger is as follows: 1. Introduction: A turbocharger is essentially an air compressor that increases the intake air volume by compressing air. 2. Working Principle: It utilizes the inertial force of the exhaust gas discharged by the engine to drive the turbine in the turbine chamber. The turbine then drives the coaxial impeller, which compresses the air delivered through the air filter pipeline, pressurizing it into the cylinder. As the engine speed increases, the exhaust gas discharge speed and turbine speed also increase synchronously, allowing the impeller to compress more air into the cylinder. The increased air pressure and density enable the combustion of more fuel, thereby increasing the fuel quantity and adjusting the engine speed, which in turn enhances the engine's output power.

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Is 'off' on or off? Is 'on' on or off?

on means on, off means off. Here is relevant knowledge about car switches: 1. Usage of light switches: Most light switches are located on the left combination switch. Up is the right turn signal, down is the left turn signal. Forward is high beam, backward switches between high and low beams. Rotating the head of the combination switch forward once turns on parking lights, and further forward turns on headlights. 2. Usage of high and low beams: Low beam switch is used for normal night driving in urban areas or under street lights; High beam switch is prohibited for night driving in cities. The flashing switch (alternating between low and high beams) serves as a warning function - if the other vehicle doesn't dim lights, or when passing intersections at night, usually lift the light control lever upward.

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What does car exhaust resonance feel like?

Car exhaust resonance feels like the vehicle's floor is vibrating, accompanied by some buzzing sounds. Exhaust resonance can significantly affect the comfort of the vehicle. Most factory-installed exhaust systems do not exhibit resonance; this phenomenon is usually found in aftermarket or modified exhaust systems. Modifying the exhaust header can enhance performance, especially for turbocharged engines, where the performance improvement is quite noticeable. The exhaust header contains a component called the catalytic converter, which reduces the levels of pollutants in the exhaust gases. Other causes of exhaust resonance include vibrations generated by the engine. Typically, bellows are installed in the front and middle sections of the exhaust system. With proper design, these can effectively reduce most of the exhaust vibrations, but some residual vibrations may still remain inside the vehicle.

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What does the driving license subject 4 test?

Can National III Trucks Still Undergo Annual Inspection?

Can I Pass the Annual Inspection with Xenon Headlights?

How to Remove Yellow Stains on White Car Paint?

Which Model is the Entry-Level Mercedes-Benz?

Is 'off' on or off? Is 'on' on or off?

What does car exhaust resonance feel like?

How to Check the Maximum Speed Rating of a Tire?

What is the appropriate speed for a new car?

Which BYD Models Feature Chinese Character Buttons?

Which part of the car window should be struck when using an emergency hammer to break it?