General Printing
This section is to assess your knowledge in general printing theory. Please answer to your best of your ability.
1) ______ should be monitored regularly and maintained at the proper level to help prevent plate blinding?
2) The ________ sits between two oscillator rollers and serves to smooth, condition, and transfer ink, connecting the other rollers in the system.
3) Increasing ink film thickness to increase optical density will have the effect of _________ tack.
4) If inks for a 4-color process job have the following tacks: Black 11; Cyan 14; Magenta 13; and Yellow 15 - the rotation for maximum trap should be:
5) The industry standard light source for viewing color is:
6) Most densitometers used in the pressroom are equipped with three color filters; they are:
7) The color of the substrate on which an image is printed will have the greatest effect on the ________ tone.
8) Which print problems can develop when using paper containing calcium carbonate?
9) Which of the following is not classified as a “printability” problem?
10) It would be impossible to moiré on a:
11) The typical printed-ink-film thickness made by an offset press is:
12) In trying to remedy a color issue on #3 coated paper, the density of the following process colors is measured. Which is the only color printing at the correct density?
13) Printing pressure between the plate and blanket is generally _______.
14) If you are printing in gray balance on coated paper and you switch to uncoated paper, which will be the most significant effect:
15) What is an average overprint trap measurement for the secondary color red if the rotation is KCMY?
16) What could happen if you do not calibrate a densitometer on a routine basis?
17) Which of the following describes the best procedure for “temperature conditioning” paper for the pressrun?
18) Although most presses have more than two front guides to register a sheet, good sheet register requires at least three points to control the press sheet. They are:
19) A void hickey is a white, unprinted spot surrounded by printing. Which of the following can cause a void hickey?
20) Sometimes, spray powder may not be desirable to prevent setoff. If so, what other method is practical to use?
21) The proper tool to use during blanket mounting is:
22) Excessive play in the bearings or gears of the plate and blanket cylinders is a likely cause of:
23) The failure of ink rollers to accept ink is referred to as:
24) Standard color viewing conditions require the surround (the surrounding area) to be Munsell N8/. Munsell N8/ is what color?
Inks and Fountain Solutions
This section is to assess your knowledge in inks and fountain solutions. Please answer to your best of your ability.
25) In a 10-minute period, an ideal lithographic ink should:
26) As a rule, an acidic dampening solution should have a range of:
27) Conductivity is a more accurate indicator than pH for determining the concentrate of dampening solutions because:
28) What is the role of acid in the fountain solution?
29) What type of water is best when mixing a fountain solution?
30) Conventional sheetfed inks dry through the _______ process.
31) What property of ink will most determine the ink film thickness?
32) Excessive acid in the fountain solution causes which of the following printing problems?
33) Waxes are added to ink to:
34) What are the advantages of aqueous coating over varnish?
35) Which of the following is a recommended remedy for streaks appearing horizontally in the printed image?
Troubleshooting
This section is to assess your knowledge in troubleshooting printing issues. Please answer to your best of your ability.
36) Mechanical ghosting most often appears in:
37) Nonuniform blanket thickness is a likely cause of:
38) Overpacking the plate cylinder would cause:
39) One of the major causes of misregister on a multicolor press is:
40) If you makeready a job and a moiré appears, what should be checked?
41) The magenta plate is toning on one side. By increasing the water overall, the job washes out on one side. What is the problem?
42) Which of the following is not a possible remedy when the image is seen on the plate but fails to transfer ink?
43) Which of the following actions helps to minimize or eliminate picking problems?
44) The feeder fails to feed single sheets. Which of the following is not a possible cause?
45) Which of the following actions would not be appropriate if printed sheets are marked or smeared in delivery?
46) When ink films are printed too thickly, many problems can result, except:
Safety
This section is to assess your knowledge in safety. Please answer to your best of your ability.
47) At what sound level is hearing protection required?
48) When is it permissible to bypass OSHA’s lockout/tagout during a maintenance procedure?
49) Who is permitted to remove a Lock and Tag?
50) Accident prevention is the responsibility of the:
