What is the body material of the BMW 3 Series?

What are the functions of fuel additive?

Here are the functions of fuel additive: 1. Clean the fuel system. After continuous use, carbon deposits on the exhaust pipe are significantly reduced, and the filter, exhaust valve, fuel system, etc. are very clean. 2. Enhance power performance. It causes secondary atomization of fuel, leading to complete combustion and improving engine power. 3. Improve atomization. It increases thermal efficiency and reduces fuel consumption. 4. Protect the engine. It has functions such as anti-oxidation, cleaning, dispersion, demulsification, anti-corrosion, and lubrication. 5. Reduce wear. It lowers engine noise and extends the engine's service life. 6. Reduce emissions. Gasoline additives can effectively reduce the activation energy of combustion, allowing non-combustible colloids in the fuel to fully burn. Fuel additive, commonly known as gasoline additive or fuel additive, is designed to compensate for certain deficiencies in gasoline and endow it with new excellent characteristics. It has effects such as cleaning system carbon deposits, increasing octane number, improving atomization, reducing wear, and protecting the engine.

15

5

Share

What Are the Symptoms of a Broken Car Radiator Cap?

When the car radiator cap is broken, coolant will spray out from the radiator cap, reducing the flow of coolant into the engine and lowering the pressure. As a result, the heat generated by the engine cannot be dissipated by the coolant, leading to engine overheating or even boiling over. The functions of the radiator cap are as follows: 1. Sealing. Under any operating condition, coolant leakage through the radiator cap is not allowed. 2. When the coolant temperature rises and the pressure inside the radiator increases to a certain value, the radiator cap automatically opens the pressure relief valve, allowing excess coolant due to thermal expansion to flow into the auxiliary tank. 3. When the coolant temperature decreases, due to the contraction of the coolant, a negative pressure forms in the radiator, and the radiator cap automatically opens the return valve, allowing the supplementary fluid in the auxiliary tank to flow back into the radiator.

8

5

Share

Can I retake Subject 4 immediately if I fail it the first time?

Subject 4 can be retaken immediately. In the driver's license examination, each subject offers one immediate retake opportunity. Below are specific details about Subject 4: 1. Examination Subjects: The subjects for the driver's license test are uniformly set nationwide, divided into four categories: theoretical knowledge, field driving skills, road driving skills, and civilized driving-related knowledge. Subject 4, also known as the theoretical test for Subject 4 or the driver's theoretical test, is part of the motor vehicle driver's license assessment. 2. Meaning: After the implementation of the Ministry of Public Security's Order No. 123, Subject 3 was divided into two parts, adding a safety and civilized driving knowledge test besides the road test. 3. Test Composition: The exam consists of 50 questions, primarily in the form of case studies, pictures, and animations, with a full score of 100 and a passing score of 90.

14

2

Share

Can the Subject 4 Exam Venue Be Changed?

Subject 4 exam venue can be changed. Exam venue regulations: Municipalities directly under the central government, cities divided into districts, or public security traffic management departments at the equivalent level shall construct exam venues according to local examination needs and equip them with a sufficient number of exam vehicles. Exam venue standards: The construction of exam sites, road section settings, vehicle allocation, facility and equipment configuration, as well as exam items and evaluation requirements shall comply with relevant standards. Exam sites, exam equipment, and exam systems must pass the acceptance inspection by provincial public security traffic management departments before being put into use. Public security traffic management departments shall strengthen the supervision and management of exam venues within their jurisdiction, and conduct regular inspections of exam sites, exam vehicles, exam equipment, and venue management conditions.

7

5

Share

How is a sharp curve defined?

Sharp curve refers to a curve with a horizontal curve radius of less than 50 meters. Sharp curve to the left: The sharp curve to the left traffic warning sign is set at an appropriate position in front of the road with a sharp left turn. The sharp curve to the left traffic warning sign is mostly found on mountain roads. Mountain roads are a high-risk area for accidents, extremely dangerous, so it is essential to drive slowly when going up or down the mountain. Driving precautions: Develop the habit of fastening your seat belt when driving, and make sure the car door is closed tightly while driving. When passing through the intersection of the main road and the auxiliary road, pay attention to slowing down. If you are not sure whether there is a car coming out of the intersection, you must slow down and pass slowly. Always use the turn signal when changing lanes.

13

5

Share

Can Plug-in Hybrids Get Blue License Plates?

Plug-in hybrids cannot get blue license plates. Plug-in hybrid vehicles are divided into the following categories: Traditional Internal Combustion Engine Drive: Obtains driving power by consuming fuel. Electric Drive: Obtains power by consuming electricity from the power battery. Plug-in hybrid vehicles are a type of new energy vehicle that falls between pure electric vehicles and fuel-powered vehicles. They have both the traditional car's engine, transmission, drivetrain, fuel system, and fuel tank, as well as the pure electric vehicle's battery, electric motor, and control circuit. The methods for charging plug-in hybrid vehicles are: Installing a home charging station provided by the manufacturer; Using public charging stations; Using a portable charging gun; Charging via the car's engine.

15

0

Share

What is the body material of the BMW 3 Series?

What are the functions of fuel additive?

What Are the Symptoms of a Broken Car Radiator Cap?

Can I retake Subject 4 immediately if I fail it the first time?

Can the Subject 4 Exam Venue Be Changed?

How is a sharp curve defined?

Can Plug-in Hybrids Get Blue License Plates?

What to Do When the Car Tail Light is Cracked?

What Causes Water Leakage Under the Co-Driver Seat in a Car?

What are the manifestations of mild fatigue in Subject 4?

Where to Check the Study Hours for Subject 4?