
70/80-10 tires can be replaced with 90-10 vacuum tires. Here are the specific details about tires: 1. Introduction to tire pressure: Tire pressure, strictly speaking, refers to the air pressure inside the tire. In car , the engine is the heart of the car, and damage to the engine will lead to the end of the car's life. Similarly, tire pressure is the blood pressure of the car, and the level of tire pressure plays a crucial role in the performance and power of the car. 2. The importance of maintaining normal tire pressure: If the tire pressure is too high, the friction and adhesion of the tire will decrease, affecting braking performance; it can cause steering wheel vibration and deviation, reducing driving comfort; and it accelerates the wear of the central tread pattern, shortening the tire's lifespan. If the tire pressure is too low, the friction coefficient with the road surface increases, leading to higher fuel consumption.









When I worked as a guide at the test center, I often encountered trainees worrying about their scores not being uploaded. In fact, every vehicle in the test center is equipped with an automatic recording system, and the data is backed up in real-time on the local server. As long as you are sure you passed the test items during the exam, your scores definitely won't just disappear. It's best to explain the situation to the lead coach on the same day. The coach will help you check the original records at the test center, and you just need to fill out a score supplement application form. Once, I helped a trainee with this issue, and the process took about three to four days to get the scores added to the system, with no need to reschedule the test. I usually recommend paying extra attention to the final display on the electronic screen after the test and taking a photo of the passing result as proof to avoid future hassles.

Last month, I accompanied my cousin for his driving test (Subject 2) and encountered this exact issue. Right after he completed the right-angle turn, the system suddenly went black. Don't panic—most cases of failed score uploads are technical glitches caused by network fluctuations. We immediately contacted the instructor, who brought the test center's receipt to the DMV to review the surveillance footage. After confirming he passed every segment, the staff manually entered his score into the system onsite. The entire process required no extra fees or retesting—just a two-day wait for the score to update. The key is to keep your ID and check-in slip as proof. Driving school instructors are well-versed in these procedures, so letting them handle the coordination saves you much hassle compared to DIY efforts.

As a veteran staff member in charge of review at the vehicle office, I can clearly tell you that failing to upload the test results does not require a retake. The results for Subject 2 are synchronized and recorded in the vehicle's data recorder at the end of the test, with dual backups for data such as reverse parking time and slope distance. As long as the coach contacts the test center to check the system logs on the same day and confirms the existence of the results, they can be re-uploaded. The fastest case I've handled was resolved in two hours, with the student still waiting in the rest room at the test center when the pass was displayed. Retakes are only arranged in special circumstances, such as the loss of an entire batch of exam records, but in five years, I've never encountered such an extreme case.

Throughout my coaching career, I've handled over twenty cases where test results failed to upload, with an actual retake rate of zero. The examination system automatically backs up data three times daily, including precise scores recorded by various project sensors. The most effective solution is to have the driving school front desk print your detailed exam report, then take it directly to the chief examiner for signature confirmation. Last week when assisting a student with this process, the supervisor resolved it within ten minutes by comparing steering wheel angle curve charts. The only situation requiring retakes is when cheating invalidates the results - normal exam issues can always be remedied, after which you can proceed with preparing for Subject 3 training.

Last time when I took the Subject 2 test, I encountered the same situation - the system crashed after the hill start and my score wasn't uploaded. I asked an inspector in the waiting area, and he said two or three cars experience similar malfunctions every day. The solution is quite simple: first go to the monitoring room to check the replay of your test footage to confirm there were no violations; then register the test car number, and will retrieve the original data package from the backup hard drive for upload. I supervised the entire process, and by evening of the same day I took the test at noon, I was able to check my score. There's absolutely no need to pay for a retest unless you actually crossed the line and failed without realizing it.


