Intermediate Electronic Separation Workers Theoretical Knowledge Appraisal Test Samples
I. Ambient questions (1 point for every space, total 20 points)
1. Colors are represented by three quantities: __, __, and __.
2. The electronic color separation machine divides the density range of the manuscript into four sections such as __, ___, ___, and _.
3. In 105 AD, China invented papermaking technology. Paper is made from four major raw materials such as __, __, rubber, and __.
4. The quality indicators of color image prints are mainly __, __, _, etc.
5. The ideal blue ink completely absorbs __nm wavelength light.
6. Proofing is generally divided into ___ proofing and __ proofing.
7. In color reproduction, the main color dot angle is ____, and the yellow dot angle is ___.
8. In order to avoid the moiré caused by dot angles, it is best to use ___ dot.
Second, the multiple-choice questions (each question name points, a total of 20 points. Each question can only choose one correct answer, multiple answers to answer the wrong score)
1. Most electronic scanning machines use an Australian Tungsten lamp, and its color temperature is ().
A. 4000K B. 4500K C. 4800K D. 5500K
2. The electronic screening color separation film uses a photosensitive material having a sensitization ().
A. Small contrast and latitude B. Contrast, great tolerance C. Contrast, small tolerance D. Small contrast and large tolerance
3. In the electronic color separation operation, it is very important to use the main light hole correctly. It is related to ().
A. Zoom B. Original resolution C. Dot shape D. Network point of view
4. In the electronic color separation workshop, the color of the wall is preferably () color.
A. White B. Light blue C. Light gray D. Light green
5. Under blue light conditions, observe the yellow print and see ().
A. Blue B. Black C. White D. yellow
Three, calculation questions (10 points)
A color ink is available. The measured density value is DR=0.16, DG=1.40, DB=6.68. What is the hue of the ink? The color shift, color efficiency, and gray scale of the ink were calculated.
Four, short answer questions (10 points for each question, a total of 30 points)
1. Write the following definitions of printing technology terms: printability, color density, color correction, chromatography.
2. A brief description of the significance of linear compensation for film in the operation of electrical separation.
3. What are the two aspects of hierarchical adjustment in electricity distribution operations? What is its meaning?
V. Narrative questions (20 points)
Explain the content included in the original analysis and the importance of the original analysis in electronic color separation.
Test sample answers
First, fill in the blank
1. Hue hue saturation
2. Extremely bright tone Midtones
3. Cai Lun plant fiber filler color
4. Color reproduction level reproduction image clarity
5.600 to 700
6. Hard and soft
7.45° (135°) and 90° (0°)
8. FM
Second, multiple choice
1. C 2. C 3. A 4. C 5. B
Three, calculation questions
Answer: Magenta
Solution: =DM-DL/DH-DL×100%=0.68-0.16/1.40-0.16×100%=42%
Color deviation ratio=(1-DM+DL/2DH)×100%=(1-0.68+0.16/2×1.4)×100%=70%
Grayscale=DL/DH×100%=0.16/1.40×100%=11%
Fourth, short answer questions
1. A: Printability: The substrate, printing ink, and other materials are matched to the printing conditions to suit the overall performance of the print job.
Color density: The density of a color image, expressed as a decimal logarithm of the inverse of the transmittance or reflectance.
Color correction: In the color image reproduction, a color separation sheet correction process that makes the color reproduction of the printing closer to the original.
Chromatography: The sum of the color patches of various colors superimposed on the basis of different dot percentages using standard cyan, magenta, yellow, and black inks.
2. Answer: Due to the restriction and change of the photosensitive characteristics curve and the development characteristic curve of the film, the value displayed by the dot-divided film recording dot cannot correspond to the actual value of the dot-divided output dot, in order to ensure the correctness of the dichroic dot-spot data of the electronic color separation machine. Therefore, the corresponding linear compensation of the film is required.
3. A: One is calibration and the other is regulation. The so-called calibration is to determine the voltage range to adapt to a variety of different contrast density of the manuscript, adjustment is to use different levels of curve adjustments to improve the lack of original level.
V. Narrative questions
A: First, the main contents of the manuscript analysis include:
1. Types of manuscripts: oil paintings, watercolors, Chinese paintings, color slides, color reversal films, color prints, etc.
2. The specification of the manuscript processing: reflect originals, transmit originals.
3. The influence of the manuscript on the platemaking quality: the density contrast range, the color rendering situation, the characteristics of the hierarchical appearance, the expression of the subtle level and so on.
Second, the thoroughness of the analysis of the manuscript is the key to operating the electronic color separation machine, and they determine the correctness of the calibration and adjustment in the process of electrical separation.
Intermediate Electronic Color Worker Operation Skills Appraisal Sample
First, test questions
Select a transmissive original for electronic color separation.
Second, the test requirements and scoring criteria
1. The operation time is from the acceptance of the manuscript to the calibration until the end of the development. It is completed in 40 minutes (40 minutes on time, 0.5 minutes for each minute).
2. The color separation quality was evaluated by a color separation film after development and fixing (the quality was 20 points, and the quality was not good enough).
3. The quality of the original manuscript was evaluated under the normal conditions of copying and printing.
4. Comply with safe operating procedures. (10 points)
I. Ambient questions (1 point for every space, total 20 points)
1. Colors are represented by three quantities: __, __, and __.
2. The electronic color separation machine divides the density range of the manuscript into four sections such as __, ___, ___, and _.
3. In 105 AD, China invented papermaking technology. Paper is made from four major raw materials such as __, __, rubber, and __.
4. The quality indicators of color image prints are mainly __, __, _, etc.
5. The ideal blue ink completely absorbs __nm wavelength light.
6. Proofing is generally divided into ___ proofing and __ proofing.
7. In color reproduction, the main color dot angle is ____, and the yellow dot angle is ___.
8. In order to avoid the moiré caused by dot angles, it is best to use ___ dot.
Second, the multiple-choice questions (each question name points, a total of 20 points. Each question can only choose one correct answer, multiple answers to answer the wrong score)
1. Most electronic scanning machines use an Australian Tungsten lamp, and its color temperature is ().
A. 4000K B. 4500K C. 4800K D. 5500K
2. The electronic screening color separation film uses a photosensitive material having a sensitization ().
A. Small contrast and latitude B. Contrast, great tolerance C. Contrast, small tolerance D. Small contrast and large tolerance
3. In the electronic color separation operation, it is very important to use the main light hole correctly. It is related to ().
A. Zoom B. Original resolution C. Dot shape D. Network point of view
4. In the electronic color separation workshop, the color of the wall is preferably () color.
A. White B. Light blue C. Light gray D. Light green
5. Under blue light conditions, observe the yellow print and see ().
A. Blue B. Black C. White D. yellow
Three, calculation questions (10 points)
A color ink is available. The measured density value is DR=0.16, DG=1.40, DB=6.68. What is the hue of the ink? The color shift, color efficiency, and gray scale of the ink were calculated.
Four, short answer questions (10 points for each question, a total of 30 points)
1. Write the following definitions of printing technology terms: printability, color density, color correction, chromatography.
2. A brief description of the significance of linear compensation for film in the operation of electrical separation.
3. What are the two aspects of hierarchical adjustment in electricity distribution operations? What is its meaning?
V. Narrative questions (20 points)
Explain the content included in the original analysis and the importance of the original analysis in electronic color separation.
Test sample answers
First, fill in the blank
1. Hue hue saturation
2. Extremely bright tone Midtones
3. Cai Lun plant fiber filler color
4. Color reproduction level reproduction image clarity
5.600 to 700
6. Hard and soft
7.45° (135°) and 90° (0°)
8. FM
Second, multiple choice
1. C 2. C 3. A 4. C 5. B
Three, calculation questions
Answer: Magenta
Solution: =DM-DL/DH-DL×100%=0.68-0.16/1.40-0.16×100%=42%
Color deviation ratio=(1-DM+DL/2DH)×100%=(1-0.68+0.16/2×1.4)×100%=70%
Grayscale=DL/DH×100%=0.16/1.40×100%=11%
Fourth, short answer questions
1. A: Printability: The substrate, printing ink, and other materials are matched to the printing conditions to suit the overall performance of the print job.
Color density: The density of a color image, expressed as a decimal logarithm of the inverse of the transmittance or reflectance.
Color correction: In the color image reproduction, a color separation sheet correction process that makes the color reproduction of the printing closer to the original.
Chromatography: The sum of the color patches of various colors superimposed on the basis of different dot percentages using standard cyan, magenta, yellow, and black inks.
2. Answer: Due to the restriction and change of the photosensitive characteristics curve and the development characteristic curve of the film, the value displayed by the dot-divided film recording dot cannot correspond to the actual value of the dot-divided output dot, in order to ensure the correctness of the dichroic dot-spot data of the electronic color separation machine. Therefore, the corresponding linear compensation of the film is required.
3. A: One is calibration and the other is regulation. The so-called calibration is to determine the voltage range to adapt to a variety of different contrast density of the manuscript, adjustment is to use different levels of curve adjustments to improve the lack of original level.
V. Narrative questions
A: First, the main contents of the manuscript analysis include:
1. Types of manuscripts: oil paintings, watercolors, Chinese paintings, color slides, color reversal films, color prints, etc.
2. The specification of the manuscript processing: reflect originals, transmit originals.
3. The influence of the manuscript on the platemaking quality: the density contrast range, the color rendering situation, the characteristics of the hierarchical appearance, the expression of the subtle level and so on.
Second, the thoroughness of the analysis of the manuscript is the key to operating the electronic color separation machine, and they determine the correctness of the calibration and adjustment in the process of electrical separation.
Intermediate Electronic Color Worker Operation Skills Appraisal Sample
First, test questions
Select a transmissive original for electronic color separation.
Second, the test requirements and scoring criteria
1. The operation time is from the acceptance of the manuscript to the calibration until the end of the development. It is completed in 40 minutes (40 minutes on time, 0.5 minutes for each minute).
2. The color separation quality was evaluated by a color separation film after development and fixing (the quality was 20 points, and the quality was not good enough).
3. The quality of the original manuscript was evaluated under the normal conditions of copying and printing.
4. Comply with safe operating procedures. (10 points)
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