File Types

Question 1

Examples of raster graphics

Answer 1

• tiff
• jpg
• png
• bmp

Question 2

What makes up raster graphics

Answer 2

digital images made up of tiny coloured squares called pixels. These pixels are arranged in a grid-like pattern to create a detailed image

Question 3

The quality of a raster graphic is directly proportional to the…

Answer 3

Number of pixels it contains or PPI (pixels per inch)

Question 4

Advantage of Raster graphics

Answer 4

Can open in common software

Question 5

Disadvantage of Raster graphics

Answer 5

• Images can become pixelated
• Can be less suited for high quality print material, especially large print projects

Question 6

File type for Cad models

Answer 6

STEP
DXF
3DS
IGES

Question 7

Benefit of STEP files

Answer 7

common file type, can be opened on most common cad software

Question 8

Examples of vector graphics

Answer 8

svg
dxf

Question 9

What is a vector file

Answer 9

Vector graphics are digital images made up of mathematically defined shapes, lines, and curves. These shapes are created using algorithms, rather than pixels

Question 10

advantages of Vector files

Answer 10

Smaller file sizes than raster graphics
Scalable without pixelation
Can be resized without a lack of sharpness
Clear and precise graphics can be produced.
Have no background

Question 11

disadvantages of vector files

Answer 11

• The software that edits these types of graphics can be expensive.
• Only this specialised software packages can be used to edit these type of graphics.
  Unsuitable for photorealistic images.