GC 3460 MIDTERM QUESTIONS AND
VERIFIED ANSWERS
Which of the following is not a component of a 0/45 Spectrophotometer? - ANSWER-color probe
Which device measures spectral reflectance? - ANSWER-spectrophotometer
Which Illiuminant Mode replicates D50 lighting and is standard mode in the US? - ANSWER-M1
Spectrophotometers are sophisticated color measurement devices used only in the printing industry.
(T/F) - ANSWER-false
If I wanted an affordable device to measure color, for instance, a paint sample in my home, which device
would be best? - ANSWER-colorimeter
At which wavelength is substrate brightness measured? - ANSWER-457nm
Which of the following is NOT one of the primary ways to control the ink density. - ANSWER-Increase the
speed of the printing press.
Which type of halftone screening works by varying the size of the printed dot to create different tones? -
ANSWER-AM screening
Assuming everything else is equal, a higher LPI will result in a lower TVI (dot gain). (T/F) - ANSWER-false
Which factor will have an effect on the final printed color? - ANSWER-pigment load, substrate thickness,
ink film thickness, halftone screening
A densitometer measures light reflectance using RGB filters. (T/F) - ANSWER-true
Which style of densitometer is used for measuring printed ink? - ANSWER-reflective
An ink with a density of 2.0 reflects how much light? - ANSWER-1.0%
Three printed ink samples that all measure a density of 1.32 are all the same color. (T/F) - ANSWER-false
Which filter is used by the densitometer when measuring Magenta? - ANSWER-green
Solid ink density is a product of which two factors, primarily? - ANSWER-amount of ink on the substrate,
pigment load of ink
Which method of measuring tone value increase should be calibrated to linear (50% = 50%)? - ANSWER-
SCTV
A banded anilox roll test is used to determine optimal print conditions in offset lithography. (T/F) -
ANSWER-false
What is used to adjust the tone values of the file before printing? - ANSWER-dot gain compensation
curve
High print contrast is more desirable than low print contrast. (T/F) - ANSWER-true
Hardwood fibers tend to be longer than softwood fibers like pine, and help make the paper stronger.
(T/F) - ANSWER-false
In order to make paper appear brighter, Optical Brightening Agents (OBAs) can be added during the
papermaking process. (T/F) - ANSWER-true
A paper is said to be long grain if it is cut so that the long dimension is in the direction of the
papermaking web. (T/F) - ANSWER-true
What are examples of paper coating application methods? - ANSWER-air knife, blade coater, cast coating
Assuming the same finished paper weight, which type of paper would have lower strength? - ANSWER-
coated
Which extrusion process channels molten polymer into a flat shape which is cooled using chill rolls? -
ANSWER-cast film
The surface tension of the ink must be ____________ than the surface energy of the substrate. -
ANSWER-lower
Oriented films provide more dimensional stability than non-oriented films. (T/F) - ANSWER-true
Which is currently the most recyclable polymer used in packaging? - ANSWER-PET
VERIFIED ANSWERS
Which of the following is not a component of a 0/45 Spectrophotometer? - ANSWER-color probe
Which device measures spectral reflectance? - ANSWER-spectrophotometer
Which Illiuminant Mode replicates D50 lighting and is standard mode in the US? - ANSWER-M1
Spectrophotometers are sophisticated color measurement devices used only in the printing industry.
(T/F) - ANSWER-false
If I wanted an affordable device to measure color, for instance, a paint sample in my home, which device
would be best? - ANSWER-colorimeter
At which wavelength is substrate brightness measured? - ANSWER-457nm
Which of the following is NOT one of the primary ways to control the ink density. - ANSWER-Increase the
speed of the printing press.
Which type of halftone screening works by varying the size of the printed dot to create different tones? -
ANSWER-AM screening
Assuming everything else is equal, a higher LPI will result in a lower TVI (dot gain). (T/F) - ANSWER-false
Which factor will have an effect on the final printed color? - ANSWER-pigment load, substrate thickness,
ink film thickness, halftone screening
A densitometer measures light reflectance using RGB filters. (T/F) - ANSWER-true
Which style of densitometer is used for measuring printed ink? - ANSWER-reflective
An ink with a density of 2.0 reflects how much light? - ANSWER-1.0%
Three printed ink samples that all measure a density of 1.32 are all the same color. (T/F) - ANSWER-false
Which filter is used by the densitometer when measuring Magenta? - ANSWER-green
Solid ink density is a product of which two factors, primarily? - ANSWER-amount of ink on the substrate,
pigment load of ink
Which method of measuring tone value increase should be calibrated to linear (50% = 50%)? - ANSWER-
SCTV
A banded anilox roll test is used to determine optimal print conditions in offset lithography. (T/F) -
ANSWER-false
What is used to adjust the tone values of the file before printing? - ANSWER-dot gain compensation
curve
High print contrast is more desirable than low print contrast. (T/F) - ANSWER-true
Hardwood fibers tend to be longer than softwood fibers like pine, and help make the paper stronger.
(T/F) - ANSWER-false
In order to make paper appear brighter, Optical Brightening Agents (OBAs) can be added during the
papermaking process. (T/F) - ANSWER-true
A paper is said to be long grain if it is cut so that the long dimension is in the direction of the
papermaking web. (T/F) - ANSWER-true
What are examples of paper coating application methods? - ANSWER-air knife, blade coater, cast coating
Assuming the same finished paper weight, which type of paper would have lower strength? - ANSWER-
coated
Which extrusion process channels molten polymer into a flat shape which is cooled using chill rolls? -
ANSWER-cast film
The surface tension of the ink must be ____________ than the surface energy of the substrate. -
ANSWER-lower
Oriented films provide more dimensional stability than non-oriented films. (T/F) - ANSWER-true
Which is currently the most recyclable polymer used in packaging? - ANSWER-PET
