Quiz Three

Question 1

What are the two types of densitometers?

Answer 1

Reflection and transmissive

Question 2

When measuring film density, there are two areas that are used to determine the density quality of the film. One is D-min which is a measurement of the

Answer 2

Substrate

Question 3

D-max represents the measurement for this part of the film and determines the opacity for the film’s ____________ area.

Answer 3

Image

Question 4

The recommended D-max for the image area of the film should be between

Answer 4

3.8-4.0

Question 5

Using the Murray/Davies formula to determine the Apparent Dot Area, D1 represent the film tint minus this

Answer 5

The density of the film base.

Question 6

The purpose for measuring the Dot Area is to

Answer 6

Verify screen tints are correct

Question 7

Density is a function of the percentage of light that is

Answer 7

Reflected

Question 8

At 100% reflectance, the density reading will be

Answer 8

0

Question 9

For the press operator, density helps determine whether this should be increased or decreased

Answer 9

Ink

Question 10

The importance of density readings in printing is to maintain consistency in color control because

Answer 10

Of the press

Question 11

When using the formula in determining Dot gain, D1 represents the density of the tint minus this

Answer 11

Density of substrate

Question 12

The typical tight density tolerance for offset printing is

Answer 12

+/- .05

Question 13

In four-color printing, the balance of dot gain between the three process colors yellow, magenta, and cyan is critical in order to maintain

Answer 13

Neutral gray

Question 14

The “average” dot gain for sheet-fed, offset printing is

Answer 14

20%

Question 15

This is an indication of the ability or inability of a printed ink to accept the next ink printed compared to how well the paper accepts that ink

Answer 15

Apparent trapping

Question 16

Many factors influence trap. What are two of them

Answer 16

• Mechanical adjustment
• Sequence ink is laid down
• Amount of ink put down
• Tack & Viscocity

Question 17

Hue Error is not really an “error” but a consideration for

Answer 17

Impurities

Question 18

The gray component of a color indicates an amount of black in the ink and is measured with a densitometer as

Answer 18

Grayness

Question 19

Control bars printed on the press sheets are used in order to control various variations that occur during the printing process. One element that adds to color variations is

Answer 19

Mechanical variables

Question 20

This process involves getting a display to an optimal repeatable state

Answer 20

Calibration

Question 21

One of the four variables needed to be set on a display is

Answer 21

• Brightness
• Contrast
• White Point
• Gamma Setting (default 2.2, other 1.8)

Question 22

This setting refers to the color temperature of the monitor

Answer 22

Native white point

Question 23

The Native White Point of a display is usually

Answer 23

6,500 and 7,500

Question 24

The tone response curve is defined by this

Answer 24

Gamma

Question 25

A TRC defined by a gamma of 1.8 is the standard used in this industry

Answer 25

Print

Question 26

A TRC defined by a gamma of 2.2 is the standard used in this industry

Answer 26

Web & Video

Question 27

After calibrating a display, the next step is to characterize the display this is also referred to as

Answer 27

Profile

Question 28

When characterizing a display, one of the first readings is of the environmental lighting called

Answer 28

Ambient light

Question 29

This allows for smooth gradations, less posterization, and more color resolution

Answer 29

Bit depth

Question 30

Once a profile is created either by calibration or characterization it is stored here

Answer 30

Color profiles or color sync in library

Question 31

The Datacolor Spyder used in profiling displays is this type of device

Answer 31

Colorimeter