Why is there air in the urea tank?

How to Understand Road Markings?

Introduction to road markings is as follows: 1. Diamond-shaped markings: Diamond-shaped markings often appear in front of pedestrian crossings. This marking indicates that there is a pedestrian crossing ahead. When you see this marking, you should slow down and be prepared for pedestrians who may appear on the crossing at any time. 2. Inverted triangle markings: Inverted triangle markings often appear in front of two parallel dashed lines. This marking means you should slow down and yield, generally to pedestrians. If caught by surveillance not yielding, you may face fines and penalty points. 3. Channelizing lines: These markings are very common on highways, serving as directional indicators at highway intersections. When you see these, you should follow the designated route, and it is prohibited to drive over the channelizing lines. 4. Longitudinal deceleration markings: These markings are not very common, with horizontal deceleration markings being more typical. They often appear at turns, signaling that you should begin to slow down. 5. Combination of solid and dashed lines: These markings are usually found in tunnels, reminding drivers not to overtake and to slow down. Therefore, when you see these markings, you should follow the rules. 6. Yellow solid and dashed lines: These are quite common on two-way roads. The main meaning is that you cannot cross the solid line side, but you may temporarily cross the dashed line side. It is important to strictly adhere to these markings.

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Can green-plate agricultural vehicles still undergo annual inspection in 2020?

2020 green-plate agricultural vehicles can still undergo annual inspection. Below is relevant information regarding the annual inspection of 2020 green-plate agricultural vehicles: 1. Required documents for annual inspection: vehicle license, ID card, insurance policy for compulsory traffic insurance issued by the insurance company, warning triangle, and vehicle fire extinguisher. 2. Required driver's license type: G tractor driver's license. 3. Differences between green-plate agricultural vehicles and yellow-plate vehicles: different licensing objects - traffic authorities license various vehicles for road use, while agricultural machinery management departments manage agricultural machinery licenses for agricultural machinery products on the road. Different specifications and installation requirements for license plates - traffic and agricultural machinery administrative departments establish relevant standards, specifying the size, installation method, and position of license plates. Different management departments.

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What kind of oil should be used for a 1.5t engine?

1.5t engines use 5w30 grade oil. The Shell Helix Ultra series is suitable for most luxury cars, turbocharged models, and high-performance sports cars. Among them, Shell Helix UltraR focuses on sports performance, and some high-performance sports cars or models that emphasize sports performance can try this lubricant. Shell Helix UltraE emphasizes economy and environmental protection. Mobil focuses on power and long-lasting performance, Shell focuses on engine cleanliness and quietness, and Castrol focuses on engine protection. During maintenance, if fully synthetic oil is used, consider servicing every 10,000 kilometers; if semi-synthetic oil is used, consider changing the oil every 7,500 kilometers; if mineral oil is used, change the oil every 5,000 kilometers. Lubrication and friction reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion prevention, shock absorption. The engine converts the thermal energy of gasoline into mechanical energy by burning the expanding gas in a sealed cylinder to push the piston to do work.

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What Could Cause a Car Battery to Suddenly Lose Power?

The reasons for a car battery suddenly losing power are as follows: 1. Prolonged vehicle inactivity: When a car is left unused for an extended period, the battery gradually discharges. After long-term parking, the battery may become depleted and fail to start the vehicle. Additionally, if headlights are left on overnight, the battery could drain completely by morning. 2. Battery reaching end of lifespan: Car batteries have limited service life. Continued use without replacement may lead to power loss. The battery's condition can be assessed by observing its indicator color: green indicates normal operation, black signifies low voltage, while white means the battery has reached its lifespan and requires replacement. 3. Engine damage: If the engine belt becomes loose or breaks, it cannot drive the alternator, resulting in circuit interruption. Broken alternator wires or loose connections may also cause the battery to discharge without recharging. 4. Insufficient electrolyte: When the battery fluid level is low, its charge capacity decreases. Electrolyte naturally evaporates during normal use, requiring regular level checks. The fluid should always remain between the maximum and minimum markers. 5. Corroded battery terminals: Long-term use may cause terminal corrosion, leading to power loss. Regular inspection and cleaning of terminals are necessary to prevent operational issues and ensure normal vehicle use.

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What are the symptoms of a faulty car charcoal canister solenoid valve?

Car charcoal canister solenoid valve failure manifests in the following symptoms: 1. Gasoline odor: Increased fuel consumption accompanied by a noticeable gasoline smell inside the vehicle. 2. Stalling tendency: Difficulty starting the engine with frequent stalling, often requiring multiple ignition attempts, and the engine may stall again shortly after starting. 3. Abnormal noises: Unusual sounds during vehicle operation, particularly noticeable in non-idle states where intermittent noises may occur. Below are extended diagnostic methods for determining solenoid valve failure: Since the activated charcoal canister solenoid valve operates intermittently, proper functioning should exhibit periodic suction. When testing, disconnect the hose from the activated charcoal canister solenoid valve and wait for its activation cycle. Partially block the valve with your hand - continuous suction or complete lack of suction indicates valve malfunction.

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Advantages and Disadvantages of MacPherson Suspension?

Here are the advantages and disadvantages of MacPherson suspension: Advantages: 1. The suspension has a simple structure, occupies small space, has small unsprung mass, fast response, and low manufacturing cost. 2. The engine and steering system are easy to arrange, can be matched with various springs, and can achieve automatic adjustment of vehicle height. Disadvantages: When deformed, the kingpin's positioning angle and wheel track will change, which will greatly affect the vehicle's performance. Below is the basic information about MacPherson suspension: 1. It is one of the most popular independent suspensions today, generally used for the front wheels of cars. 2. It is an important component of the vehicle's safety structure. 3. It is one of many suspension systems, winning widespread market application due to its advantages of simple structure, low cost, and acceptable comfort.

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Why is there air in the urea tank?

How to Understand Road Markings?

Can green-plate agricultural vehicles still undergo annual inspection in 2020?

What kind of oil should be used for a 1.5t engine?

What Could Cause a Car Battery to Suddenly Lose Power?

What are the symptoms of a faulty car charcoal canister solenoid valve?

Advantages and Disadvantages of MacPherson Suspension?

Can I renew my driver's license if it has expired for two days?

How to Check Motorcycle Penalty Points?

What are the buttons on a car and their functions?

What is a car speedometer?