Should You Use Internal or External Air Circulation When the Vehicle is Exposed to Sunlight

What are the penalty rules for the hill start?

The penalty criteria for the hill start are as follows: After the vehicle stops, if the front bumper of the car or the front axle of the motorcycle is not aligned with the pole line and exceeds 50 cm forward or backward, it is considered a failure. If the front bumper or front axle is not aligned with the pole line but does not exceed 50 cm forward or backward, a penalty of 10 points is applied (previously 20 points). If the vehicle stops and the body is more than 30 cm away from the road edge line but does not exceed 50 cm, a penalty of 10 points is applied (previously 20 points). If the body is more than 50 cm away from the road edge line, a penalty of 100 points is applied. If the vehicle rolls back 10-30 cm after starting, a penalty of 10 points is applied. If the vehicle rolls back more than 30 cm, it is considered a failure. If the engine stalls once due to improper operation, a penalty of 10 points is applied. If the vehicle is not started within 30 seconds after stopping, it is considered a failure due to timeout. If the parking brake is not tightened after stopping, a penalty of 10 points is applied. If the vehicle rides or presses on the solid road edge line during movement, it is considered a failure.

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What Does the Engine Oil Grade Mean?

Automotive engine oil grades represent the viscosity and quality of the oil. Taking "15W-40, 5W-40" as an example: 1. The meaning of the letter "W": "W" stands for Winter. The smaller the number before it, the better the oil's low-temperature fluidity, indicating a lower usable environmental temperature and better protection for the engine during cold starts. For example, 5W represents resistance to external low temperatures of -30°C, while 20W resists low temperatures of -15°C. 2. The meaning of the number after the letter "W": The number after "W" represents the kinematic viscosity of the oil at 100°C. The higher the number, the higher the viscosity. 40 indicates that the kinematic viscosity standard at 100°C is between 12.5mm²/s and 16.3mm²/s.

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Which Holidays Have Toll-Free Highways?

Spring Festival, Qingming Festival, Labor Day, and National Day have toll-free highways. Related Information: 1. Relevant Regulations: According to the "Implementation Plan for Exempting Small Passenger Vehicles from Toll Fees on Major Holidays," the toll-free periods on expressways in 2021 are during the Spring Festival, Qingming Festival, Labor Day, and National Day, totaling four national statutory holidays. During these holidays, expressways are toll-free for passenger vehicles with seven seats or fewer (including seven seats). 2. Scope: The toll-free periods on expressways are during the Spring Festival, Qingming Festival, Labor Day, Dragon Boat Festival, Mid-Autumn Festival, and National Day. This includes national statutory holidays and the consecutive holidays determined by the State Council's official documents for the year.

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What to Do If Caught Driving Without a Driver's License by Traffic Police?

If caught driving without a driver's license, you will be fined and may face detention for up to 15 days. Those who drive without obtaining a motor vehicle driver's license, have their license revoked, or are driving during the period when their license is temporarily suspended will be fined by the traffic management department of the public security authority. Below is relevant information about driver's licenses: 1. Definition of a driver's license in China: A motor vehicle driver's license is a legal document issued by the management authorities, allowing individuals who have learned to drive motor vehicles in accordance with the law, mastered traffic regulations and driving skills, and passed the relevant tests to operate specific types of motor vehicles. 2. History of driver's licenses: Before May 2004, driver's licenses were annotated with three types of permitted driving models: A license (for large buses), B license (for large trucks), and C license (for small cars).

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What are the reasons for the power system warning light to illuminate?

Engine warning light illumination is usually caused by the following reasons: 1. Poor combustion condition: Poor engine combustion is the main cause of the engine warning light. During vehicle operation or at the moment of ignition, the engine warning light on the dashboard (usually red or yellow) illuminates. In most cases, it won't disappear automatically, though it may in rare instances. 2. Engine knocking: In the first scenario, some engine warning lights may illuminate while others may not. In the second and third scenarios, the engine warning light will inevitably illuminate. 3. Internal causes for engine warning light illumination: Poor fuel quality; Dirty engine cylinders with carbon deposits. Over time, engines inevitably accumulate carbon deposits, which alter the engine's design parameters and, due to their unstable nature and heat retention, can cause irregular ignition leading to engine knocking. 4. Cooling system issues such as piston scuffing, knocking, cylinder leakage, severe noise generation, and reduced acceleration power: These occur due to abnormal engine operating temperatures, excessive pressure, and poor cooling system conditions. A malfunctioning cooling system directly prevents the engine from operating at normal temperatures, resulting in the aforementioned severe issues.

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What Causes a Car to Start Easily When Cold but Not When Hot?

There are several possible reasons why a car starts easily when cold but fails to start when hot: 1. Carbon Deposits: At high temperatures, carbon deposits have a strong adsorption effect on fuel. Excessive carbon buildup on pistons, throttle valves, and intake pipes can absorb a portion of the fuel, resulting in a lean air-fuel mixture (too much air, too little fuel), which affects engine starting. 2. Fuel System Malfunction: When the car is hot, temperatures are high. If the owner uses low-quality gasoline from small gas stations to save money, poor fuel quality can cause gasoline to evaporate, leading to an overly lean mixture. Additionally, issues like a malfunctioning fuel pump or leaking fuel injectors can also make starting difficult.

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Should You Use Internal or External Air Circulation When the Vehicle is Exposed to Sunlight

What are the penalty rules for the hill start?

What Does the Engine Oil Grade Mean?

Which Holidays Have Toll-Free Highways?

What to Do If Caught Driving Without a Driver's License by Traffic Police?

What are the reasons for the power system warning light to illuminate?

What Causes a Car to Start Easily When Cold but Not When Hot?

What was the pass rate for Subject 3 in 2021?

What is the car name mentioned in 'Lotus only grows in mud'?

How Many Years Can a Car Be Driven Before It's Scrapped?

What to Do When ETC Card is Restricted?