Web accessibility principles - Perceivable

Question 1

What is the principle of ‘Perceivability’ in web accessibility?

Answer 1

Perceivability is about making the output of web content available through multiple sensory modalities.

Question 2

Which senses are primarily concerned with perceivability in web content? (Select all that apply)
A) Sight
B) Sound
C) Touch
D) Taste
E) Smell

Answer 2

Correct: A, B, C

Question 3

True or False: Perceivability means making web content available only through visual means.

Answer 3

False

Question 4

How can blind users perceive web content? (Select the best option)
A) Through hearing using screen readers
B) Through touch using braille displays
C) Through a combination of hearing and touch

Answer 4

Correct: C

Question 5

What is the most universally accessible format for web content?

Answer 5

Digital text

Question 6

True or False: Digital text can be converted into formats accessible to those who are blind, deaf, or both.

Answer 6

True

Question 7

What is an ARIA live region used for?

Answer 7

An ARIA live region is used to announce new content as it is inserted into the DOM.

Question 8

Why is perceivability important in web accessibility?

Answer 8

If you can’t perceive web content, it may as well not exist.

Question 9

How can you make dynamic interactions perceivable for blind users?

Answer 9

You can use ARIA to announce state changes like ‘expanded’ or ‘collapsed’ or inject new content announcements.

Question 10

True or False: Sighted users need to see all digital text on the screen, including descriptions of images.

Answer 10

False