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What are the reasons for a large vehicle not inflating?

1 Answers
LeJace
07/29/25 3:51pm
The reasons for a large vehicle not inflating are the softening of the built-in spring plate in the air pump, blockage in the air pump pipeline, or air leakage in one of the four circuits. Poor quality of the air pump or insufficient pressure from the air pump can make inflation very slow and laborious. Concept of an air pump: An air pump, also known as an "air pump," is a device that either removes air from a closed space or adds air to it. Classification of air pumps: Air pumps are categorized into electric air pumps, manual air pumps, and foot-operated air pumps. Working principle of an air pump: The engine drives the crankshaft of the air pump via two V-belts, which in turn drives the piston to inflate. The air produced is then directed into the air storage tank through pipelines.
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Can I drive without the supplementary card of the vehicle license?

Driving without the supplementary card of the vehicle license is not allowed. According to the Traffic Safety Law, driving without the supplementary card of the vehicle license is considered a violation. Here are the relevant details: 1. Composition of the vehicle license: A complete driver's license includes the original and the supplementary card, and a complete vehicle license also includes the original and the supplementary card. If the supplementary card is missing, it means the driver's license or vehicle license is incomplete, and you will be penalized. If both the driver's license and vehicle license supplementary cards are lost, it is recommended to go to the local transportation management office and traffic police detachment to reapply for them. Otherwise, you cannot drive on the road. 2. Handling method: The correct way to handle the situation of not carrying the vehicle license is to temporarily detain the motor vehicle, issue a compulsory measure certificate until the relevant proof materials (vehicle license) are presented, and then make an administrative penalty decision. The traffic police cannot make an administrative penalty decision on the spot and can only temporarily detain the motor vehicle.
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What are the dimensions and marking method for the reverse parking in Subject 2?

The dimensions are 5.25M in length and 2.31M in width; the marking method requires labeling key points and routes. The examination content consists of the following four parts: 1. Subject 1: Road traffic rules, traffic signals, traffic safety violations and accident handling, regulations on the application and use of motor vehicle driving licenses, motor vehicle registration, and other road traffic safety laws, regulations, and rules; 2. Subject 2: Testing reverse parking, assessing the mastery of motor vehicle driving skills and the ability to judge the spatial position of the vehicle; 3. Subject 3: Driving a motor vehicle on the road to complete test items, compliance with traffic laws and regulations, and comprehensive control of the vehicle; proper use of lights, horns, seat belts, and other devices; correct observation and judgment of road traffic conditions; 4. Subject 4: Separating the knowledge related to safe and civilized driving from Subject 1, as well as safe driving skills under complex conditions and emergency handling in critical situations, which is conducted after the actual road driving test of 'Subject 3' to further assess the candidate's traffic awareness.
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What Causes the Steering Wheel to Suddenly Become Heavier While Driving?

Here are the reasons why the steering wheel may suddenly become heavier while driving: 1. Vehicle abnormality or malfunction: Check the steering wheel settings, as it could be due to a vehicle abnormality or malfunction. For example, the power steering pump may be damaged, low on oil, or the belt may be faulty. Alternatively, the power steering motor or its module could be problematic. 2. Electronic power steering self-adjustment function: Most new vehicles now use electronic power steering, which allows for adjustable steering wheel effort. This setting is usually found in the vehicle settings or personal preferences on the central console. Mechanical and electronic power steering differ; electronic power steering often has a self-adjustment feature that increases steering effort at high speeds to prevent over-light steering and potential misoperation. Mechanical power steering tends to be heavier, especially at low speeds. 3. Insufficient power steering fluid: Power steering fluid is a medium used in the vehicle's power steering pump to transmit steering force and provide cushioning. The fluid needs to be replaced periodically, and leaks should be checked. When the power steering fluid is low, the steering wheel may feel heavy and sluggish.
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Does it matter if the vehicle license is not under my name?

It does not matter if the driver's license and vehicle license are not under the same person, as long as both documents are carried when driving. Here is additional information: 1. Relevant regulations: According to Article 11 of the Road Traffic Safety Law of the People's Republic of China, when driving a motor vehicle on the road, the vehicle license plate must be displayed, along with the inspection qualification mark and insurance mark, and the vehicle license must be carried. The vehicle license plate must be displayed clearly and completely in accordance with regulations and must not be intentionally obscured or damaged. No unit or individual may confiscate or detain a vehicle license plate. 2. Other regulations: It is prohibited to assemble a motor vehicle or alter the registered structure, construction, or characteristics of a motor vehicle without authorization; change the model number, engine number, frame number, or vehicle identification number of a motor vehicle; forge, alter, or use forged or altered motor vehicle registration certificates, license plates, vehicle licenses, inspection qualification marks, or insurance marks; or use the registration certificates, license plates, vehicle licenses, inspection qualification marks, or insurance marks of other motor vehicles.
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Is the driving license valid for life or does it need to be renewed every few years?

The first renewal is after 6 years, and the second renewal is after 10 years. More extended information is as follows: 1. According to the "Road Traffic Safety Law": The initial validity period of a motor vehicle driving license is 6 years, with the first year being the probation period. After 6 years, the second renewal has a validity period of 10 years, and after 10 years, subsequent renewals are valid for life. The motor vehicle driver should apply for renewal at the vehicle management office where the driving license was issued within 90 days before the expiration of the current license. 2. There are two types of expiration for a driving license: First, annual inspection expiration. If the annual inspection is not conducted on time, the validity of the previous year's inspection expires. Failure to conduct the annual inspection means the vehicle has not undergone the required annual or biennial inspection. Vehicles without a valid inspection are not allowed to drive on public roads, and driving without it will result in penalties. Second, driving license validity expiration. This type of expiration is equivalent to not having a driving license. Vehicles without a valid driving license are also not allowed to drive on public roads and will face the same penalties.
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What Causes the Car Belt to Squeak in Cold Weather?

The reasons for the car belt squeaking in cold weather are: 1. The belt tightens due to low temperature before the vehicle starts, causing noise; 2. The belt is severely aged and nearing the end of its service life; 3. The belt is too loose or too tight. The functions of the belt are: 1. Ensuring accurate intake and exhaust timing; 2. Synchronizing engine ignition and cylinder movement; 3. Ensuring smooth power output from the engine. The method for replacing the car belt is: 1. Lift the vehicle and remove the right front wheel fender liner; 2. Remove the alternator belt and the alternator belt tensioner; 3. Loosen the crankshaft pulley bolt; 4. Open the engine hood and remove the coolant reservoir; 5. Remove the engine mounting bracket and the protective cover on the belt; 6. Unscrew the alternator mounting bolt and remove the alternator; 7. Remove the cylinder block mounting bracket and take off the crankshaft pulley; 8. Rotate the crankshaft to the top dead center position of the cylinder and mark it; 9. Remove the belt and the tensioner.
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