OCR J277 Bitmap Images Quiz-Post Mocks

What does the term "image resolution" refer to in bitmap images?

• The number of colours in an image

• The number of pixels in an image

• The file size of an image

• The compression technique used

Which unit is commonly used to measure image resolution?

• Pixels per inch (PPI)

• Bits per pixel (BPP)

• Kilobytes (KB)

• Megapixels (MP)

What does "colour depth" in a bitmap image indicate?

• The number of pixels in the image

• The number of bits used to represent each colour

• The physical size of the image

• The type of compression used

How many colours can be represented with a colour depth of 8 bits?

• 16

• 256

• 1024

• 65536

Which of the following is a lossless compression technique?

• JPEG

• PNG

• MP3

• MPEG

What is the primary advantage of using lossy compression techniques?

• No data is lost

• Smaller file sizes

• Higher image quality

• Easier to edit

Which of the following is a common lossy compression format for images?

• BMP

• GIF

• JPEG

• TIFF

What is the effect of increasing the resolution of a bitmap image?

• Decreases the file size

• Increases the file size

• Reduces the number of colours

• Improves compression

Which colour depth would allow for the highest number of colours in an image?

• 8-bit

• 16-bit

• 24-bit

• 32-bit

What is the main disadvantage of using a higher colour depth in bitmap images?

• Reduced image quality

• Increased file size

• Fewer colours available

• Slower rendering speed