Visual

Question 1

What is the closest a viewer should be to a display

Answer 1

not closer than 1 times the screen width

Question 2

What is the farthest distance factor for general viewing i.e. video

Answer 2

8

Question 3

What is the farthest distance factor for viewing with clues i.e. words

Answer 3

6

Question 4

What is the farthest distance factor for viewing without clues ( known as inspection) i.e. engineering drawings, medical images

Answer 4

4

Question 5

How do you determine the furthest viewer

Answer 5

Image height multiplied by viewing task

Question 6

What is the generally accepted maximum off axis viewing angle from the center of the screen

Answer 6

45 degrees

Question 7

How do you determine viewer distance by text height

Answer 7

Multiply the text height by 150

Question 8

How do you calculate throw distance for a projector

Answer 8

Distance = Screen width * throw ratio

Question 9

How do you calculate aspect ratio

Answer 9

AR = width / height

Question 10

What is the ratio for 4:3

Answer 10

1.33 / 1

Question 11

What is the ratio for 16:9

Answer 11

1.78 / 1

Question 12

What is the ratio for 16:10

Answer 12

1.6 / 1

Question 13

What is the average seated head height

Answer 13

52”

Question 14

What is the average seated eye level

Answer 14

48”

Question 15

What are the 4 possible projector orientations

Answer 15

1. front table
2. fronts ceiling
3. rear table
4. rear ceiling

Question 16

define mix minus system

Answer 16

a type of speech reinforcement system that allows both meeting presenters and participants to be heard. Each loudspeaker is given a separate subsystem, which mixes the microphone signals, minus the closest microphone.

Question 17

Which tool would be used to measure intensity and hue of color information

Answer 17

Vectroscope

Question 18

Which system is used to show colors in a display

Answer 18

Additive color system