The second round of the Skills Contest Question Bank: Multiple-choice questions
1. Compound color is a color formed by mixing three kinds of colorants. The following colors belong to compound color ().
A, R B, 2Y + 2M + C
C, BK + R D, M + 2Y
E, C + M
2. The complementary color of two kinds of color materials is black, and the complementary color materials are ().
A, C and R B, Y and C
C, M and C D, M and G
E, M and Y
3. The two-color light is mixed into white light, which can be ().
A, R and Y B, C and orange
C, Y and B D, C and R
E, B and M
4. Neutral gray is a series of colors such as black, white, and gray, which is expressed in dots as ().
A, K100% B, C75% M62% Y62%
C, C75% M60% D, Y60% M62%
E, C75% M60% K20%
5. The quality requirements for the appearance of printed and reproduced products are ().
A. The layout is clean with no obvious dirt
B. The outlets are clear and the angle is correct
C. The text is complete, clear and accurate
D. The color conforms to the printed sample
E. Small increase rate of outlets
6. The correct description of ink emulsification is ().
A, only occurs in multi-color machine
B. The phenomenon that the ink absorbs the wetting fluid during the printing process
C. Printing failure due to excessive absorption of wetting fluid in the ink
D. It has a great influence on the drying of printed products, and does not affect the gloss of printed products.
E. Ink emulsification in lithography can be avoided
7. The following primary colors are ().
A, yellow light B, black ink
C, magenta D, blue-violet light
E, white light
8. The commonly used method for expressing printing pressure in production is ().
A, surface pressure B, line pressure
C. Compression deformation D. Contact area width
E. Point pressure
9. Paper transferred from () relative humidity environment to () relative humidity environment will produce tight edges.
A, 25 ℃ B, 60%
C, 30% D, 35 ℃
E 〠30 ℃ °
10. The main technical parameters for objectively evaluating the printing quality of newsprint are ().
A. Overprint accuracy B. Picture clarity
C, field density D, small dot reproduction rate
E, 50% increase in outlets
11. Mechanical wear is the result of friction and fatigue generated by the metal surface of the part during relative work movement. The form of wear can be divided into ().
A. Oxidative wear B. Thermal wear
C. Abrasive wear D. Pitting wear
E, crushing wear
12. The formulation of operating procedures generally includes ().
A. Preparation before operation B. Requirements of operation process
C. Work at the end of the operation D. Requirements for quality inspection
E. Service life of equipment
13. The working mode of CTP computer direct plate-making equipment is ().
A, inner drum B, outer drum
C, platform type D, bevel type
E, scanning type F, winch type
14. The inspection content of the printing plate and text includes the dot quality, specification size and ().
A, dot angle B, rule line, color code
C, the number of network lines D, the depth of the printing plate
E. Thickness of photosensitive layer
15. In addition to offset printing, the following is the category of lithography ().
A, stone seal B, waterless offset
C. Colo Printing D. Direct Lithography
E, flexo printing F, electrostatic printing
16. The main reason for forming stacks in the offset printing process is ().
A. Printing pressure of plate cylinder and rubber cylinder B. Printing pressure of ink cylinder and plate cylinder
C. Printing pressure of rubber cylinder and rubber cylinder D. Printing pressure of water cylinder and printing cylinder
17. The selective adsorption in offset printing is mainly manifested in ().
A, printing plate B, blanket
C, water roller D, ink roller
18. In the offset printing process, wetting refers to the process where the gas on the surface of the printing plate is replaced by ().
A, fountain solution B, ink
C, gum D, dispersion power
19. CTP computer direct plate-making technology is becoming more and more mature. At present, there are many types of CTP plate materials in the newspaper industry. In addition to the widely used photopolymerization printing plates, there are mainly () CTP printing plates.
A, UV type B, silver salt diffusion type
C, thermal type D, treatment-free type
E, inkjet type F, infrared laser type
20. In addition to the registration accuracy and field density, the parameters that affect the quality of offset printing products are ().
A, ink color uniformity B, dot increase value
C. Thickness of ink layer D. Overprint rate of ink
E, relative contrast value
21. The offset printing process is a complex printing process. The captain should have the ability to deal with various problems. These capabilities should include () in addition to observation and judgment.
A. Questioning power B. Analysis power
C, agility D, thinking ability
E. Adaptability
22. The wear of offset press is mainly divided into () three types.
A. Mechanical wear B. Forced wear
C. Material wear D. Corrosion wear
E, thermal wear
23. The three primary color inks commonly used in my country are ().
A, lemon yellow B, dark red
C, medium blue D, medium yellow
E, pink F, sky blue
24. Lubricant has () effect on the offset press.
A. Reduce the friction coefficient and increase the service life of the machine
B. Reducing the friction coefficient is conducive to accelerated operation
C, help heat dissipation
D. Remove the rust on the surface of the material
E. Reduce noise
25. In addition to the pressure of the ink roller, there are two types of pressure that affect the water / ink balance ().
A. Printing plate and blanket roller pressure
B. Blanket roller pressure
C. Water roller pressure
D. Impression cylinder pressure
E. Pressure between rolling pillows
26. The surface tension of oil is smaller than that of water. The main reason is that there is no () between oil molecules.
A, dispersion force B, orientation force
C, inducing force D, adhesion
27. The physical properties of ink include ().
A. Specific gravity B. Rheology
C, permeability D, transferability
28. The operation procedures of safety technology of offset press mainly include ().
A. Dress safety B. Operation safety
C. Fire safety D. Machine repair safety
29. In addition to the lubricating effect, lubricating materials also have ().
A. Cooling effect B. Stress dispersion effect
C. Dustproof effect D. Antirust effect
30. The commonly used signing method for printing plate colors is ().
A. Identification by labeling method B. Identification of outlet angle
C. Discrimination of the shades of graphics and text
31. The role of filler in ink is ().
A. Reduce ink cost B. Adjust ink properties
C. Dilute the effect D. Change the viscosity
32. The fluidity of the ink is determined by the ink ().
A, viscosity B, yield value
C, thixotropy D, stringiness
33. The effect of paper on ink color depends on ().
A. Paper color B. Paper mechanical strength
C. Paper moisture content D. Paper absorption
34. The role of the spring in the offset press is ().
A. Control movement B. Cushioning and vibration absorption
C, stored energy D, the size of the adjustment force
35. There are spindle dots () dots.
A. Diamond dots B. Ellipse dots
C, square dot D, round dot
36. According to national standards, for color printing, a dot with a main axis is used, and the screen angle of the main color version should be ().
A, 45 ° B, 30 °
C, 15 ° D, 135 °
37. According to the cause of the failure, the ink stick includes ().
A, cam ink bar B, vibration ink bar
C, roller ink bar D, gear ink bar
38. The most common key connections in offset presses are ().
A. Loose connection B. Tight connection
C, sliding connection D, fixed connection
39. Paper surface strength refers to the ability of paper ().
A. Surface peeling B. Layering effect
C, folding resistance D, breaking resistance
40. () is a physical quantity describing the surface state of the paper.
A. Surface strength B. Surface tension
C. Excess surface D. Surface gravity
41. The substances in () are compatible with each other.
A. Similar chemical structure B. Similar physical properties
C. Similar molecular polarity D. Similar molecular weight
42. The main reason for the color shift caused by paper is ().
A, ink absorption B, water content
C, whiteness D, surface tension
43. The main factors affecting paper peeling deformation during printing are (), etc.
A. The nature of the paper and the ink area on the surface B. The printing pressure and the time for the cylinder to imprint each other
C. Ink viscosity and viscosity D. Ink roller diameter and ink roller ink volume
44. The current new printing materials mainly include ().
A, environmentally friendly wetting fluid B, anti-counterfeiting paper
C, environmental protection ink D, compound ink
45. The main factors affecting the printing quality of newspapers are (), etc.
A. Overprint and color difference B. Solid density
C. Type of outlet D. Increase of outlet
46. ​​The main contents of printing quality management measures are () and so on.
A. Establish an attendance mechanism B. Improve the basic work of quality management
C. Strengthen on-site management D. Establish the "quality first" idea
47. The dot deformation during the printing process is specifically represented as ().
A, edge burr B, increase
C, zoom out D, ghosting
48. In printing machinery, mechanical parts such as () are often used to form transmission devices for energy transmission.
A, pulley B, shaft
C, gear D, sprocket
49. Organic color materials mainly include ().
A, metal pigment B, azo pigment
C, phthalocyanine pigment D, lake pigment
50. The main reason for the offset printing marks is caused by the offset press ().
A. Gear wear B. Large concession value
C. Improper adjustment of pressure D. Improper adjustment of ink roller
51. The optical properties of ink mainly include (), etc.
A, color B, tinting power
C, transparency D, gloss
52. The factors that affect ink color are ().
A, pigment B, linking material
C. Filler D. Ink manufacturing process
53. In CTP plate making, the main factors that affect the quality of plate making are ().
A. Plate quality B. Equipment performance
C. Development conditions D. Process control
54. Color digital proofing is the result of comprehensive application such as ().
A. Computer technology B. Color printing technology
C. Color management technology D. Traditional printing technology
55. Generally, the dots involved in lithography are ().
A, FM outlet B, AM outlet
C. Mixed outlets D. Special-shaped outlets
56. When printing a sample, you should focus on () several aspects.
A. Water volume of layout B. Measurement and control strip
C. Picture features D. Bright and dark tone
57. The basis for objectively evaluating printing quality is ().
A. National standard B. Industry standard
C. Printing use D. People's visual effects
58. The indicators for objective evaluation of printed matter include ().
A, resolution B, clarity
C, relative contrast D, outlet characteristics
59. In the offset printing process, the factors causing the color difference failure are ().
A. Printing materials B. Printing and decorating design
C. Printing environment D. Printing equipment
60. The main points of printing quality control are ().
A, brightness B, color
C, tone D, overprint
61. In the operation training outline, the content of () should be run through.
A. Cognition B. Imitation
C. Innovation D. Skilled
62. The main characteristics of air cushion blanket are reflected in ().
A, good compressibility and recovery B, good ink absorption
C. Good vibration absorption D. Good dot reproducibility
63. The basic methods of theoretical training are ().
A. Teaching method B. Discussion method
C. Demonstration method D. Teacher with apprenticeship method
64. Prepress process management is the most important part of lithographic process management, including ().
A. Communicate with customers B. Pre-press process design
C. Computer management D. Prepress operations
65. The mechanical strength of paper mainly includes ().
A, tensile strength B, surface strength
C, tear degree D, opacity
E. Fold resistance
66. The degree of paper tearing is related to the paper itself ().
A, paper smoothness B, paper fiber arrangement direction
C, paper width D, paper tightness
67. Ash content refers to the content of inorganic substances in paper. Ash content in paper includes ().
A. Filler B. Mineral composition
C, link material D, water
68. If the ink viscosity is too high, it may cause () and other failures.
A. Too much ink transfer B. Poor transferability
C. Paper pulling wool D. Poor overprinting
69. The main printing properties of ordinary blankets include () and so on.
A, hardness B, elasticity
C. Compression deformation D. Ink transferability
70. The main factors that affect the color error of the prepress process are ().
A, color separation B, printing
C. Image scanning D. Film output and development
71. The main factors causing inaccuracy of multi-color overprinting in the printing process are ().
A, paper B, printing pressure
C. Paper peeling force D, B and C are not
72. The main factors that cause white bars to fail in news printing are ().
A. Ink roller and plate pressure B. Water roller and plate pressure
C, the water volume is too large D, the drum beats
73. The main reasons affecting the gray balance of printing are ().
A, ink error B, visual error
C, water volume error D, ambient temperature
E. Environmental humidity
74. The environment required to observe color is (), etc.
A. Minimize the surrounding environmental interference
B. After entering the observation environment, there must be time to adapt to the environment
C. The observation angle should be 45 °
D. Bright color atmosphere
75. The following belong to the non-spindle network point ().
A, round dots B, oval dots
C, square dot D, diamond dot
76. Issues that should be noted in prepress design include (), etc.
A. Graphics and images B. Fonts and lines
C, light font D, hollow word
77. The steps and methods to solve the difficult technical problems of offset printing are ().
A. Observe B. Question
C. Judgment D. Report
E. Exclude
78. The basic elements of CTP direct plate making include ().
A, digital files B, RIP
C, CTP plate-making machine D, printing plate
79. Operation printing machinery should follow ().
A. Staff's dress safety regulations B. Operator's quality safety regulations
C. Operational safety regulations for operators D. Safety regulations for operators when dealing with faults
80. The three primary colors of color material refer to ().
A, Y B, M
C, CD, K
81. In the rotary printing machine, it is necessary to equip the tension device ().
A. Paper feed section B. Before printing unit
C. Inside the printing unit D. Between the folding machine and the printing unit
82. The type of printing unit structure of the web newspaper printer is ().
A, BB type B, Y type
C, satellite type D, M type
83. Offset printing has () several characteristics.
A. Use light pressure printing B. Dot color
C. Water dampening D. Indirect printing
84. In CMYK printing, the proportion of the three primary colors that certainly does not produce gray is ().
A, C50 + M37 + Y37 B, C50 + M45 + Y45
C, C50 + Y50 + K50 D, C60 + Y60 + M60
85. Newsprint has good ink absorption, low surface smoothness, large printing pressure is used when printing, and the dot increase value is large, so the total ink amount must be smaller during color separation. The incorrect setting is ().
A, 200% B, 400%
C, 320% D, 260%
86. The following are the functions of the paper path guidance system ().
A. Control the movement path and direction of the paper tape
B. Complete the work of turning the paper tape
C. Make the paper tape produce a longitudinal displacement relative to the printing part
D. Adjust the horizontal position of the paper tape
87. Newspaper printing materials are currently ().
A, screen printed version B, PS version
C, CTP version D, flexo version
88. The following characteristics of newsprint printing are ().
A. Large printing contrast B. Wet pressure wet printing
C. Small color gamut D. High printing accuracy
E, fast speed
89. The inspection of the quality of the printing plate before it is put on the machine includes ().
A. Printing plate appearance quality inspection B. Printing plate gauge line and color mark inspection
C. Print image content, position check D. Print plate color check
E. Quality inspection of printing plate outlets
90. It can be divided into () according to the position where the ghost appears.
A. Vertical ghosting B. Oblique ghosting
C, horizontal ghosting D, non-fixed ghosting
91. The main factors affecting the ink transfer of the ink roller of the inking system are ().
A. Improper pressure adjustment between ink rollers B. Non-parallel between ink rollers
C. The quality of the ink roller itself is not good D. The weight of the ink roller itself
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