Answer of self-made digitalization QUIZ (part 1)

Question 1　⓪　Question 2　②　Question 3　③　Question 4　①　Question 5　③

Question 1

This question asks why the image is clearly visible. The higher the density of dots, the cleaner the resolution, so ⓪ is the correct answer.

Question 2

Here we are asked about the three primary colors of color. Options ① Red and ② Green are inappropriate because they are included in the three primary colors of light. Choice ④, Cian, is inappropriate because it does not exist in the color names. Therefore, ③ Cyan is correct.
〔the three primary colors of light 〕　
　Red　Green　Blue
〔three primary colors〕
　Magenta　Yellow　Cyan
*Only for Yellow, the gradation is slightly lowered for ease of viewing.

Question 3

The image is composed of pixels of various colors, and the question is to answer the name of the smallest of these pixels. At this point, the highest unit of ⓪ is inappropriate, and likewise, the mode of ①, which gives the most represented number, is also inappropriate. Median in ② is inappropriate because it means median. Therefore, the minimum unit in ③ is the correct answer.

Question 4

dB in ⓪ is inappropriate because it is a decibel and a unit of sound. ② Hz is inappropriate because it is a unit of sound waves. ③ is an abbreviation for audio visual and is inappropriate. Therefore, ppi (pixels per inch) in ① is the correct answer.

Question 5

⓪, ①, and ② are in digital form, such as images or screens, but Traffic signals are inappropriate because they use LEDs or other lighting. Therefore, ③ traffic signals is the correct answer.