Can four-wheeled motorcycles go on highways?

What Causes Idle Shaking in Automatic Transmission Vehicles?

Manual transmission vehicles may experience slight shaking during startup as the clutch is in a semi-engaged state. Below is relevant information about car idling: 1. The function of car idling: Idling is an operational state of a vehicle where the engine runs in neutral gear. The engine speed during idling is called idle speed, which can be adjusted by modifying the throttle opening. Idling essentially means the engine is "producing power without doing work." When the accelerator pedal is fully released while the engine is running, the engine enters idle state. 2. Causes of unstable idling: Direct causes include dirty, worn, or incorrectly installed mechanical components that lead to variations in cylinder power output, resulting in imbalance among cylinders and consequently unstable idling. Indirect causes refer to abnormalities in the engine's electronic control system that cause poor combustion of the air-fuel mixture, making it difficult to balance cylinder power output and leading to unstable idling.

19

3

Share

What is Engine Braking?

Engine braking is the process of using the resistance generated by the engine's operation to slow down the vehicle. When the actual driving speed of the car exceeds the speed that should be achieved at the current gear and throttle position, the vehicle enters the engine braking state. Here are some related explanations: Braking speed: For example, if a vehicle is traveling at 60km/h and the throttle is released without disengaging the gear, the vehicle will be in a coasting state with the gear engaged. From this point onward, the vehicle's forward movement is influenced by engine braking. In this scenario, it is not the engine driving the wheels through the transmission, but rather the opposite—the wheels drive the engine through the transmission. Even without pressing the throttle, the engine maintains a high rotational speed. Situations for engine braking: When driving on long downhill sections, it is advisable to use engine braking to reduce the time spent applying the brakes, thereby preventing brake overheating, fading, or even failure. Due to different gear ratios, lower gears provide better engine braking effects. Therefore, the appropriate gear for coasting should be selected based on the steepness of the slope and the desired driving speed.

2

3

Share

Is there a time limit for handling electronic traffic violations?

If it is an on-site violation, the payment must be made within 15 days. For non-on-site violations, they can be handled before the vehicle's annual inspection. There is no specific time limit. If a violation occurs and remains unprocessed, meaning the fine has not been paid, the violation must be addressed before the vehicle can undergo inspection. Below are the relevant details: On-site violations: When a vehicle commits a violation and is caught by traffic police on the spot, the police will issue a ticket immediately. Such tickets must be paid at a designated bank within 15 days. If the fine is not paid within 15 days, a 3% late fee will be charged daily, but the total late fee cannot exceed the total fine amount. Non-on-site violations: These include violations captured by road surveillance cameras, such as speeding, running red lights, crossing solid lines, improper lane changes for turns, driving in the wrong direction, etc. These can be found online or at the traffic police station. There is no time requirement for handling these; they can be processed at any time, but they must be resolved before the vehicle's annual inspection, otherwise, the inspection will not be approved.

12

1

Share

Will the Automatic Transmission Subject 4 Exam Include Manual Transmission Questions?

Automatic transmission Subject 4 exam will include manual transmission questions. The questions for both automatic and manual transmissions are the same in the Subject 4 exam. Manual transmission is divided into 1st, 2nd, 3rd, 4th, and 5th gears. You start in 1st gear and shift up to 2nd gear when accelerating, and so on. Compared to automatic transmission, the acceleration process is slower. Automatic transmission vehicles do not require gear shifting. A manual transmission license allows driving automatic transmission vehicles, but an automatic transmission license does not permit driving manual transmission vehicles. The main content of the Subject 4 exam includes: safe and civilized driving operation requirements, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations like tire blowouts, and post-accident handling knowledge. Subject 4 extracts the requirements related to safe and civilized driving from the original Subject 1, along with safe driving skills under complex conditions and emergency handling knowledge, and places them after the actual road driving test of "Subject 3" to further assess the candidate's level of traffic awareness.

6

4

Share

Is 18 too early to get a driver's license?

Getting a driver's license at 18 is not too early. Here is relevant information about obtaining a driver's license: 1. Test subjects required for the license: Subject 1, Subject 2, Subject 3, and Subject 4. 2. Materials needed for the license application: medical examination form, application form, ID card, etc. 3. Important notes for the test: Subject 1 is a theoretical exam—don't take it lightly, always check your ID before the exam; Subject 2 is an in-car test—after getting in, adjust the seat and mirrors first; Subject 3 must be fully completed—after parking by the roadside, shift to neutral; Subject 4 includes multiple-choice questions—don’t mistake multiple-choice for single-choice, read the question requirements carefully.

11

0

Share

What car starts with 'ze'?

ze is the symbol for train formation. The following is a related introduction about high-speed EMUs: 1. Distinction: EMUs (Electric Multiple Units) are not equivalent to motor cars, nor are they equivalent to high-speed trains. In addition, since EMUs evolved from traditional trains, some EMUs have structural characteristics that fall between EMUs and traditional trains, but pure multi-locomotive coupled trains do not belong to the category of EMUs. 2. Types and forms: EMUs are generally classified based on power distribution characteristics and power energy categories, with overlapping relationships between different classification types, such as distributed power diesel EMUs.

17

5

Share

Can four-wheeled motorcycles go on highways?

What Causes Idle Shaking in Automatic Transmission Vehicles?

What is Engine Braking?

Is there a time limit for handling electronic traffic violations?

Will the Automatic Transmission Subject 4 Exam Include Manual Transmission Questions?

Is 18 too early to get a driver's license?

What car starts with 'ze'?

What Happens When the Chassis is Scraped?

Can You Drive Without Your Driver's License?

Is a Motorcycle Trailer Hitch Legal for Road Use?

Can a Flood-Damaged Car Be Driven Long Distances After Repair?