What kind of driver's license is needed to drive a commercial vehicle?

Where is the radiator located on the Baojun 530?

The radiator of the Baojun 530 is located in the engine compartment, on the right side. The radiator is also called the antifreeze tank. What is actually filled in the car radiator is not water, but antifreeze. The coolant filled in the radiator is also a mixture of antifreeze concentrate and water in a certain standard ratio. The following is a related introduction to antifreeze: 1. The full name of antifreeze should be antifreeze coolant, meaning coolant with antifreeze function. Antifreeze can prevent the coolant from freezing and cracking the radiator or freezing the engine cylinder block or cover when parking in cold winter. 2. In addition to antifreeze, antifreeze also has anti-corrosion function. The engine and its cooling system are made of metal, including copper, iron, aluminum, steel and solder. These metals will be corroded and rusted after long-term contact with water at high temperatures. Antifreeze will not only not cause corrosion to the engine cooling system, but also has anti-corrosion and rust removal functions.

12

4

Share

What is the problem when the starter smokes?

The reasons for the starter smoking include battery short circuit, circuit aging, and separator damage. Here are the detailed explanations: Battery short circuit: It is most likely caused by poor quality or damage to the separator, allowing the active material of the electrode plates to pass through. If the separator is of poor quality, impurities will form when ions pass through it, leading to a short circuit between the two electrode plates. Due to the large short-circuit current, the separator will be scorched, causing further damage. The more severe the short circuit between the two plates, the greater the short-circuit current, creating a vicious cycle. Eventually, smoke will be emitted from the battery's vent hole, resulting in the phenomenon of the battery smoking. Additionally, conductive objects falling into the battery can also cause a connection between the positive and negative terminals, leading to a short circuit. Circuit aging: Smoking can also be caused by circuit aging. Most cases are due to the battery reaching the end of its lifespan. Separator damage: Separator damage is mostly caused by sparking between the electrode plates.

8

2

Share

What are the reasons why the five major assemblies cannot be sold?

Selling or buying the five major assemblies of used cars is illegal. According to the national "Regulations on the Recycling of Scrapped Automobiles", the engine assembly, steering gear assembly, transmission assembly, front and rear axles, and frame removed from scrapped vehicles cannot be bought or sold. In addition to the five major assemblies, purchased used parts should be carefully inspected by the installer. If the used parts have minor damage, deformation, or are not as good as the original parts, it is best to return or replace them immediately. The functions of the five major automobile assemblies: Engine: Converts petroleum fuels such as gasoline or diesel into rotational torque. Transmission: Uses neutral gear to interrupt power transmission, allowing the engine to start, idle, and facilitating gear shifting or power output. Front axle: Transmits the engine power, after being reduced in speed and increased in torque by the clutch and transmission, to the final power output—the wheels—through the front drive axle assembly. Rear axle: The rear axle is merely a follower axle, serving only a load-bearing function. Frame: The frame should be arranged close to the ground to lower the vehicle's center of gravity, thereby improving driving stability.

7

4

Share

What is the Scrapping Period for Mini Trucks?

Mini trucks have a mandatory scrapping period of 8 years. A mini truck refers to a commercial vehicle with a length ≤3500mm and a total mass ≤1800kg. Once the service life reaches 8 years, it must be scrapped compulsorily. Light-duty and large commercial trucks have a scrapping period of 10 years. Difference between recommended scrapping and compulsory scrapping: Recommended scrapping suggests disposal, but the vehicle can remain in use if it still meets operational requirements. Compulsory scrapping means the vehicle must be decommissioned without exception. There are four criteria for compulsory scrapping: 1. Reaching the prescribed service life; 2. Failing to meet national safety technical standards for in-use vehicles after repairs and adjustments; 3. Still exceeding national emission or noise standards for in-use vehicles after repairs, adjustments, or control technology implementation; 4. Failing to obtain valid inspection certification for three consecutive inspection cycles after the validity period expires. According to Article 43 of the 'Motor Vehicle Registration Regulations', when applying for new vehicle registration after transferring or deregistering an old vehicle, the original owner may request to retain the old license plate number. The following conditions apply: the application must be submitted within six months after transfer/deregistration, and the owner must have possessed the original vehicle for over three years.

2

5

Share

What is the passing score for C1 Subject 3?

C1 Subject 3 exam has a full score of 100, with 80 being the passing mark. The C1 exam consists of four subjects: traffic regulations and related knowledge, field driving, road driving, and safe and civilized driving common sense. C1 driver's license exam passing standards: Traffic regulations and related knowledge (Subject 1) — written test, full score of 100, passing score is 90 or above. Field driving (Subject 2) — on-site, actual vehicle. Minimum requirement is 80, below 80 is failing. Road driving (Subject 3) — highway or simulated site, actual vehicle. Full score is 100, must achieve 90 or above to pass. Safe and civilized driving common sense — written test, questions mainly in the form of cases, pictures, animations, etc., question types include true/false, single-choice, and multiple-choice, totaling 50 questions, full score of 100, passing score is 90. C1 application age: The minimum age limit for a C1 driver's license is 18 years old, with no upper age limit. However, applicants aged 70 and above must pass tests on memory, judgment ability, and reaction ability.

20

0

Share

Can You Add Water to the Car Radiator Coolant?

You should not directly add water to the car coolant, as doing so will lower the boiling point of the new coolant mixture, which may cause the car to overheat. The main component of coolant is ethylene glycol, which has excellent thermal stability—preventing freezing in winter to protect the engine and cooling the engine in summer. This ensures the engine operates at an optimal temperature year-round, an effect that cannot be achieved by using water alone. Coolant serves multiple purposes, including antifreeze, cooling, corrosion prevention, and scale inhibition. Although coolant contains water, it is specifically soft water (distilled water), which has undergone deionization and softening treatment. If the engine coolant level is low, you can add soft water, but be cautious about the quantity—adding too much can alter the coolant's boiling and freezing points. Reasons why you should not add water to car coolant: The primary function of antifreeze is to prevent scale formation. Adding water to antifreeze can lead to scale buildup in the engine, clogging the pipes and affecting performance and lifespan. Mixing water with antifreeze may cause engine scaling, which can block the cooling system, disrupting normal operation and shortening the engine's service life. The water in antifreeze is soft and must be mixed according to specific standards. Therefore, it is not recommended to add water to car antifreeze. Its main role is to circulate within the engine cooling system, carrying away excess heat generated during operation, ensuring the engine runs at the proper working temperature.

19

5

Share

What kind of driver's license is needed to drive a commercial vehicle?

Where is the radiator located on the Baojun 530?

What is the problem when the starter smokes?

What are the reasons why the five major assemblies cannot be sold?

What is the Scrapping Period for Mini Trucks?

What is the passing score for C1 Subject 3?

Can You Add Water to the Car Radiator Coolant?

What Causes Engine Control System Failure?

Is it necessary to install cruise control?

Where are the car airbags installed?

What type of gasoline should the Borgward BX5 use?