Why did the electronics factory interview ask you 26 letters?

Some parts of the electronics factory are marked with English letters. Knowing English letters can prevent mistakes in work and do a better job of self-examination. The main reason is that the recruitment conditions determined by the employer are based on the position.

Pictures of electronic accessories can be seen with English letter labels. For example, switches have L and R symbols, which are shorthand for left and right in English. When operating, the wires should be connected correctly. If you don't know English letters, you are prone to make mistakes.

Twenty-six pictures of English letters: