Can Subject 4 Exam Be Taken on Saturdays and Sundays?

Do I Need to Carry My Driver's License with Me?

You must carry your driver's license with you when driving. According to Articles 95 and 90 of the Road Traffic Safety Law, regardless of whether the driver has committed any traffic violations, they are not allowed to continue driving without their license. The traffic management department of the public security authority will impound the vehicle and require the driver to provide their license. Below is an introduction to the driving test subjects: Subject 1: A test on road traffic safety laws, regulations, and related knowledge. The structure and basic question types of the test database are formulated by the Ministry of Public Security, while provincial traffic management departments establish their own test databases based on local conditions. Subject 2: A test on field driving skills, including reversing into a parking space, stopping and starting on a slope, making a right-angle turn, driving along a curve, and parallel parking. In cities like Shanghai, Subject 2 consists of nine mandatory tests: reversing into a parking space, right-angle turns, parallel parking, driving through a tunnel, stopping to take a card, driving along a curve, making a U-turn on a narrow road, emergency stopping, and stopping and starting on a slope. Subject 3: A test on road driving skills, including basic procedures such as vehicle preparation (walking around the vehicle counterclockwise, fastening the seatbelt, turning on the left turn signal, shifting gears, releasing the handbrake, and honking the horn), starting, driving straight, changing lanes, passing through intersections, pulling over, crossing pedestrian crossings, passing school zones, passing bus stops, meeting other vehicles, overtaking, making U-turns, and driving at night. Subject 4: A test on safe and civilized driving knowledge, covering related concepts of safe and civilized driving.

1

4

Share

How Many Years of Driving Experience Does Huolala Require?

To join Huolala as a driver, you must possess a C1 driver's license and have at least one year of driving experience. The relevant introduction of Huolala is as follows: Introduction 1: Huolala operates on a free order-grabbing model, with no mandatory order acceptance requirements. However, drivers must not randomly grab orders. Once an order is accepted, it must be serviced strictly in accordance with Huolala's requirements. Violations of the rules will result in relevant penalties. Introduction 2: Currently, the platform is in a development phase and does not charge any fees to drivers. Huolala provides uniform training for all joining drivers. During training, drivers need to bring their ID card, vehicle registration certificate, and driver's license. There is no mandatory requirement to drive to the company for training; drivers can arrange to drive or take public transport based on their actual situation.

8

1

Share

Does BMW Transmission Fluid Need to Be Replaced?

BMW requires transmission fluid replacement. Whether it's a manual transmission or an automatic transmission, the transmission fluid in BMW vehicles needs to be replaced regularly. Below is relevant information about transmission fluid: Function of Transmission Fluid: Transmission fluid is an oil product that keeps the gear system clean, ensuring the normal operation of the transmission and extending the lifespan of the transmission components. Reasons for Replacing Transmission Fluid: Transmission fluid must be replaced when it reaches the replacement cycle. Over time, the fluid becomes dirty and its viscosity decreases, which reduces its ability to protect the transmission effectively. This can lead to symptoms such as rough shifting, abnormal acceleration, loud noises, and in severe cases, premature transmission damage, shortening the transmission's lifespan.

8

5

Share

Do Car Spark Plugs Affect Engine Power?

Spark plugs have a direct impact on the power of a car engine. Faulty spark plugs can cause symptoms such as difficulty starting, low power, excessive exhaust emissions, and increased fuel consumption. Severely damaged spark plugs may exhibit phenomena like pitting at the top, black streaks, cracks, or melted electrodes. Methods to determine if a spark plug is damaged: Remove the spark plug and observe its appearance to assess its condition. A normal spark plug will have an insulator skirt and electrodes that appear gray-white, gray-yellow, or light brown. A properly functioning spark plug will have a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode burn. If the spark plug is covered in oil or deposits but is not damaged, it can continue to be used after cleaning off the oil and deposits. If the spark plug is severely damaged, showing pitting, black streaks, cracks, or melted electrodes at the top, the cause of the damage should be identified, and the fault should be resolved before replacing the spark plug. Additionally, if the spark plug appears black as if smoked, it indicates that the wrong heat range was selected or that the air-fuel mixture is too rich, or that engine oil is leaking into the combustion chamber.

2

0

Share

Is Fuel System Cleaning Necessary for Maintenance?

Cleaning the fuel system is indeed necessary. Gasoline inevitably contains certain impurities, which generate carbon deposits in the combustion chamber over time. As these deposits accumulate, they can impair combustion efficiency, subsequently affecting engine performance and increasing fuel consumption. Issues such as poor fuel injector atomization, engine weakness, poor acceleration, and non-compliant exhaust emissions may arise. Below are the maintenance and cleaning procedures for the fuel system: 1. Regularly add a high-quality fuel system cleaner. Typically, cleaning should be performed every 10,000 to 20,000 kilometers. The cleaner effectively removes carbon deposits, sediments, and gum from the combustion chamber, intake valves, fuel injectors, and fuel lines while driving. Keeping the fuel system clean helps decompose moisture in the fuel and reduces harmful emissions. 2. Use specialized equipment for cleaning, such as a no-disassembly cleaning method that involves adding a cleaning solution through a supply device, commonly referred to as "hanging an IV bottle." This method allows for cleaning without disassembling the engine during operation, providing protection and effectively avoiding damage caused by disassembly. Most 4S shops adopt this approach.

9

5

Share

What is the difference between China 6a and 6b?

Here is an introduction to the differences between China 6a and China 6b: 1. For light-duty vehicle emission limits, the country has set two levels of requirements this time: the "China 6a" phase and the "China 6b" phase. "China 6a" is equivalent to a transitional stage between "China 5" and "China 6", while "China 6b" is the true "China 6" emission standard. 2. The emission standards for the "China 6a" phase are basically the same as those for "China 5", only taking the strictest values from the "China 5" emission requirements. The control of particulate emissions from vehicle exhaust has been tightened from 6*10^12 to 6*10^11. The emission standards for China 6b are almost twice as strict as those for "China 6a", and a more stringent "Real Driving Emissions (RDE) test" is adopted.

10

4

Share

Can Subject 4 Exam Be Taken on Saturdays and Sundays?

Do I Need to Carry My Driver's License with Me?

How Many Years of Driving Experience Does Huolala Require?

Does BMW Transmission Fluid Need to Be Replaced?

Do Car Spark Plugs Affect Engine Power?

Is Fuel System Cleaning Necessary for Maintenance?

What is the difference between China 6a and 6b?

Is it called idling when in first gear without giving gas?

Which brand does the DVVT engine belong to?

Does converting a car to run on natural gas harm the engine?

How many subjects are required to upgrade from C3 to C1?