Regarding the unpopular knowledge of cars, don’t say I didn’t tell you!

Let’s take a look at the buses in these pictures.Wheel hub, Are the front wheels protruding and the rear wheels recessed? Why?

Generally, the hubs of buses and trucks are concave facing inward and convex facing outwards, because this can free up more space to install other parts, such asbrakeandsteering systemWait.Usually in order to take into account the carrying weight, the rear wheel will be equipped with twotire, OutsidetireJust use convex andcarThe tires on the inside are fixedly connected, so we see that the rear wheels are all concave.

Many people laugh at the driving skills of female drivers, but did you know that the first car driver in the world was a woman? After the German mechanic Karl Friedrich Benz built the first car in 1885, the government was not allowed to try it because the government wasted oil and damaged the road. However, he had a sturdy wife. Without driving training, one day he drove his two sons secretly and went back to his family to visit relatives. So he became the first car driver in the world.

If the two pedals are the same height, the driver is easy to confuse, the main thing is to increase the recognition of the two to avoid the danger of using the brake as the accelerator. Then why is the brake higher than the accelerator? In layman's terms, put your feet on the accelerator pedal for a longer period of time while driving. If it is particularly high, your legs and feet will become sore after a long time.

Although the usage rate of this device is not high, every car owner should know that if you are trapped in the car and cannot come out of the car door, you should lay down the rear row.Seat, Drill into the trunk, there is a pull ring on the inside of the trunk, pull the trunk lid to open it.