1. Regardless of whether it is a yin or yang picture, the shades from the highlights to the dark tones are expressed by dots, which are called ().
A, halftone B, middle tone C, high tone D, continuous tone
2. When printing text-based prints, the paper whiteness ().
A, not too high B, not too low C, high D, low
3. Lithographic four-color printing adopts () and black.
A, yellow, magenta, cyan B, yellow, red, cyan C, magenta, green, cyan D, yellow, red, blue
4. In manuscripts that mainly focus on landscapes and landscapes, the angle of () is generally designed to be 45 °.
A, black version B, magenta version C, cyan version D, yellow version
5. () refers to the basic appearance of color, indicating the difference in color quality.
A, brightness B, saturation C, hue D, color vision
6. Before adjusting the pressure between the water roller and the printing plate ().
A. First adjust the pressure between it and the plate B. First adjust the pressure between it and the water roller C. First adjust the pressure between it and the plate cylinder D. No order
7. The opacity () of paper generally used for printing.
A, the higher the better B, the lower the better C, can be high or low D, not necessarily
8. Adding an appropriate amount of () to the wetting fluid can reduce the surface tension of the wetting fluid.
A, phosphate B, gum arabic solution C, surfactant D, phosphoric acid
9. The temperature of the offset printing shop is generally controlled at ().
A, 10 ~ 18 ° B, 15 ~ 20 °
C, 18 ~ 28 ° D, 25 ~ 30 °
10. The amount of compression of the blanket blanket of the blanket is the same as the pressure it receives ().
A, proportional to B, inverse to C, equal to D, uncertain
11. The PS version resolution has the greatest relationship with ().
A, development time B, development temperature C, exposure time D, electrolytic roughening
12. The environment suitable for offset printing should be ().
A, smooth air B, humid climate C, dry climate D, relatively stable temperature and humidity
13. In printing, the best choice for maintaining ink-water balance is ().
A, ink thick water small B, ink thin water big C, ink big water big D, ink small water small
14. Generally, according to different printing materials, it is better to control the PH value of the wetting fluid between ().
A, 3 ~ 5 B, 5 ~ 6
C, 6 ~ 7 D, 7 ~ 8
15. The fluidity of printing ink increases with increasing temperature, and its viscosity value is ().
A, increase B, decrease C, unchanged D, it is possible
16. The color sequence generally adopted by the four-color machine is ().
A, Y, M, C, BK B, C, M, Y, BK
C, BK, Y, C, MD, uncertain
17. Before adjusting the pressure between the inking roller and the printing plate ().
A. First adjust the pressure between it and the printing plate B. First adjust the pressure between it and the inking roller C. First adjust the pressure between it and the plate cylinder D. No order
18. Lithographic offset printing () expresses continuous tone.
A, halftone dots B, ink
C, level D, all possible
19. The judgment index of the quality of the three primary colors is ().
A, hue, brightness and saturation B, color efficiency, gray and color error
C, fluidity, light resistance and chemical stability D, primary colors, complementary colors and intermediate colors
20. Adding () to the ink can increase its fluidity.
A, debonding agent B, 0 # ink adjustment C, 6 # ink adjustment D, the above three are all 21. The function of alcohol in the bucket liquid is ().
A. Reduce the surface tension of water B. Reduce the emulsification of ink C. Increase the conductivity D. The above are all 22. Roller (shoulder iron) contact printing machine should ().
A. Clean the rolling pillow once a week B. Clean the rolling pillow once a day C. Clean the rolling pillow once a shift D. Keep it clean at any time 23. During printing, it is found that the ink color of the printed matter is too light, which may be caused by ().
A. Too much water on the layout B. Insufficient ink supply C. Blanket D. All of the above reasons
24. The water supply of the printing layout has nothing to do with ().
A. Temperature B. Layout graphic C. Printing pressure D. Printing speed 25. When printing, if it is found that the non-graphic part of the printed product is dirty, it should be considered ().
A. Increase the water supply of the layout B. Increase the printing pressure
C. Increase the amount of ink supply D. None of the above 26. () has nothing to do with the printing density.
A, ink overprint rate B, printing contrast
C, dot expansion rate D, paper thickness 27. Ink printing color sequence has nothing to do with ().
A. Ink viscosity ïš² B. Graphic area
C. Overprint effect D. Plate thickness
28. The faster the speed of the printing press, the overall water and ink should be ().
A, increase ïš² B, decrease
C, unchanged ïš´ D, not necessarily
29. Under the same conditions, a 10% increase in dots is () compared with a 90% increase in dots.
A, 10% increase value is small, 90% increase value is large B, basically the same
C, 10% increase value is large, 90% increase value is small D, there is a gap
30. Most of the halftone dots in the screen are in the state of ().
A. Long axis connection B. Short axis connection
C. The long axis is not connected D. The long and short axes are not connected 31. When copying an image with an elliptical dot, the range of the tone curve () of the printed product performs better.
A, 10% ~ 30% B, 30% ~ 70%
C, 50% ~ 80% D, 70% ~ 90%
32. Copying () originals with oval dots is best.
A. Landscape B. Chinese painting
C. Character D. Porcelain 33. The more widely used color measuring instrument is ().
A. Three-color filter colorimeter B. Spectrophotometer
C. Transmission density meter D. Reflection density meter 34. The basic structure of the spectrophotometer is ().
A. Light source lighting system, spectroscopic system, receiving amplification system, control and data processing system
B. Light source lighting system, spectroscopic system, receiving amplification system, control and data processing system, sample room
C. Light source lighting system, receiving amplification system, control and data processing system, sample room
D. Light source lighting system, spectroscopic system, control and data processing system 35. The light source of the color measuring spectrophotometer has the property of ().
A. The light energy output changes slightly B. The light energy output can change
C. The luminosity of any illuminating body D. The light output stability is good 36. China's () standard has made clear provisions on the color difference of the color of the substrate, the color of the ink and the original printing color.
A, GB / T17934.2—1999 B, GB / T7921—97
C, GB / T19437—2004 D, GB / T7705—2008
37. The difference in lightness is less than zero, indicating that the lightness of the sample color compared with the standard color ().
A, high B, slightly higher
C. Same D. Low 38. The chromaticity difference is less than zero, indicating that the hue of the sample color compared with the standard color ().
A, greenish, B, yellowish
C. Reddish D. Bluedish 39. The chroma difference is less than zero, indicating that the sample color is lower in chroma and appears than the standard color ().
A, no ash B, white light, more ash
C. Less ash content D. White light or smaller ash content 40. The hue difference is less than zero, indicating that the sample color is in the standard color ().
A, counterclockwise direction B, axial direction
C, clockwise D, at the same position

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