This is a transcript of a video lesson about basic mechanics for drivers. The speaker explains the main parts and functions of the internal combustion engine, the difference between four-stroke and two-stroke engines, and the power supply system. He also mentions some test questions and gives tips on how to remember the concepts. He ends by thanking the viewers and asking them to leave comments. The video lesson is about 20 minutes long.
Here are the key facts extracted from the text:
1. The text is a transcript of a video lesson about basic mechanics of internal combustion engines.
2. The text explains the difference between four-stroke, two-stroke and diesel engines, and how they work in terms of admission, compression, explosion and exhaust.
3. The text also explains the difference between carburetor and electronic injection as the power supply systems for the engines.
4. The text mentions some examples of vehicles that use different types of engines and power systems, such as moped, Beetle, Brasilia and bikelet.
5. The text ends with a thank you to Nikolaus Otto, who is considered the inventor of the internal combustion engine.