App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 602 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.Which of these fits saving in the cloud? (a) photos on two devices (b) the sound on/off setting (c) notes to read offline (d) a draft you are typing
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 23 px
   Title: 28 px
   Hint: 10 px (a) Title (b) Hint (c) Body text
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Item → Shop → Cart
   Design B: Home → Size → Menu → Shop → Pay → Address
5. 5.True or false: a shared to-do list fits saving on the phone. (a) False (b) True
6. 6.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a menu button (c) a tab bar
7. 7.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Title: 13 px
   Menu: 18 px
   Label: 13 px
   Hint: 14 px
9. 9.True or false: grey text on grey is good button design. (a) True (b) False
10. 10.🎨 Who should you test the UX with? (a) nobody (b) real users (c) the app icon (d) only yourself
11. 11.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
12. 12.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Stars", "Sunrise"];
    show(songs[0]); (a) Stars (b) Monsoon (c) Sunrise
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Size
    Design B: Home → Results → Shop → Offers → Menu
14. 14.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a clear next step (c) a random page (d) a dead end
15. 15.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Size → Item → Pay → Offers
    Design B: Home → Pens → Confirm → Shop (a) Design A (b) Design B
16. 16.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
17. 17.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 44 px tall
    Send button: 44 px tall
    Done button: 32 px tall
    Save button: 48 px tall
18. 18.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
19. 19.🎨 UI stands for user ___. (a) idea (b) input (c) interface (d) internet
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Shop → Search → Confirm → Pay
    Design B: Home → Shop → Search → Results → Confirm
21. 21.🔢 In a quiz-app flow, which comes first: “read a question” or “see the final score”? (a) read a question (b) see the final score
22. 22.💾 Which can hold many values in order? (a) a list (b) a single number (c) a button (d) a switch
23. 23.🔘 Our rule: buttons are at least 48 px tall. The Help button is 44 px tall. How many px taller must it be?
24. 24.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
25. 25.Which of these is true of a menu button? (a) switches main sections (b) undoes one move (c) shows 3 to 5 icons (d) opens a list of pages
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Footer: 18 px
    Title: 17 px
    Body text: 24 px
    Caption: 16 px
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Video”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 52 px tall
    Start button: 44 px tall
    Save button: 64 px tall (a) Save (b) Next (c) Start
29. 29.Which of these is true of a final design? (a) uses plain grey boxes (b) is a quick sketch (c) shows where things go (d) uses the final pictures
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Edit photo”
    3. tap the Home tab
    Which screen are you on now? (a) Edit photo (b) Friend list (c) Search (d) Home
31. 31.🔍 Which is the odd one out? (a) whether users get lost (b) how many taps it takes (c) the screen layout (d) how easy sign-up is
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Shop → Item → Pens → Pay → Offers → Results
    Design B: Home → Pay → Results
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Cart → Pens → Address → Menu
    Design B: Home → Search → Menu
34. 34.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
35. 35.🔢 In a sign-up flow, which comes first: “see the home screen” or “enter the code sent”? (a) enter the code sent (b) see the home screen
36. 36.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) dead end (c) home screen (d) tab bar
37. 37.🔍 Which is the odd one out? (a) how fast a task is done (b) how users feel after (c) how many taps it takes (d) the theme colours
38. 38.True or false: a tiny 20 px button is poor button design. (a) False (b) True
39. 39.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ title text ]
    [ filter buttons ]
    [ Save button ]
    [ search box ] (a) title text (b) Save button (c) search box (d) filter buttons
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Menu → Item
    Design B: Home → Confirm → Search

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