Video

Question 1

the ratio of image width to image height. It can be expressed as two whole numbers separated by a colon, e.g. 16:9, or by the decimal equivalent of the implied division, e.g. 1.77.

Answer 1

Aspect Ratio.
examples of common aspect ratios:
4:3 (1.33) for Standard-Definition (SD)
16:9 (1.77) for High-Definition (HD) video

Question 2

What is the the formula for finding aspect ratio?

Answer 2

AR = W / H
Where:
AR is the aspect ratio
W is the width of the displayed image
H is the height of the displayed image
Note that W and H are measured in inches or millimeters.

Question 3

216.5 inches (5499 mm) high. A projected image with a 1.78:1 aspect ratio covers the entire width of the screen. What is the image’s height? Round to the nearest millimeter or inch.

Answer 3

122 inches since its rounded to the nearest inch

Question 4

A company requires a 1.33:1 screen to be installed in a room. The existing projector in the room is configured to project an image that is 44.3 inches (1125 mm) high and 59 inches (1499 mm) wide. What is the aspect ratio of the projected image?

Answer 4

The aspect ratio is 1.33:1 (4:3)

devide the width by the height

Question 5

Aspect ratio is the relationship between \_\_\_\_.
A.) diagonal and length
B.) height and width
C.) diagonal and width
D.) length and angle

Answer 5

B

Question 6

What aspect ratio screen should be used to display a 1280 by 720 pixel image?
A.) 21:10
B.)  1.6:1
C.) 16:10
D.) 16:9

Answer 6

D

Question 7

What is the formula for the Screen Diagonal Formula AKA the Pythagorean Theorem
(The diagonal of a screen can be calculated using the Pythagorean Theorem)

Answer 7

A2+ B2 = C2
Where:
    A is the height of a screen
    B is the width of a screen
    C is the diagonal length of a screen
(note: if u have A and B and add them up u will need to square c to figure it out.)

Question 8

A mounted 1.78:1 display in a room has a diagonal measurement of 42 inches (1067 mm) and a height of 20.6 inches (523 mm). What is the width of the display?

Answer 8

36.7
hint(ignore the diagonal it will mess with you fraction.. instead focus on the aspect ratio… so 1.78 * 20.6 to get the width)

Question 9

A screen has an aspect ratio of 1.78:1 and the following height dimension: 165.3 inches (4199 mm). The width of the screen is _____ and the diagonal of the screen is_____

Answer 9

294.2 and 337.5

Question 10

The farthest viewer concept addresses which three factors?
A.) Image height, viewer task, and distance
B.) Viewer task, lumens output, and distance
C.) Distance, seating layout, and image height
D.) Sightlines, screen reflectivity, and contrast methods

Answer 10

A

Question 11

The primary goal of the farthest viewer formula is to ensure that _____.
A.) the closest viewer does not block the farthest viewer’s sight line
B.) all viewers can interpret what is on the screen
C.) the maximum number of viewers are fit into the space
D.) there is enough task lighting for note-taking

Answer 11

B