App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 787 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 21 px
   Caption: 21 px
   Body text: 16 px
2. 2.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
   [ title text ]
   [ list of items ]
   [ top bar ]
   [ Add button ]
   [ menu icon ] (a) Add button (b) list of items (c) title text (d) top bar
3. 3.Which of these is about UI (the look)? (a) how easy sign-up is (b) how many taps it takes (c) the button colours (d) how users feel after
4. 4.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
5. 5.🔢 In a quiz-app flow, which comes first: “see the final score” or “read a question”? (a) see the final score (b) read a question
6. 6.True or false: a final design is a quick sketch. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 17 px
   Label: 13 px
   Caption: 14 px
   Title: 14 px
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
9. 9.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
10. 10.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
11. 11.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 36 px tall
    Send button: 52 px tall
    Done button: 56 px tall
    Start button: 48 px tall
12. 12.True or false: notes to read offline fits saving on the phone. (a) True (b) False
13. 13.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ search box ]
    [ big picture ]
    [ list of items ]
    [ top bar ]
    [ menu icon ]
    [ tab bar ] (a) top bar (b) menu icon (c) search box (d) list of items
14. 14.💾 What number does this code show?
    let lives = 4;
    lives = lives - 4;
    lives = lives + 5;
    show(lives);
15. 15.🔢 In a sign-up flow, what comes right after “open the app”? (a) type name and email (b) tap “Sign up” (c) make a password (d) see the home screen
16. 16.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ filter buttons ]
    [ big picture ]
    [ Add button ]
    [ tab bar ] (a) big picture (b) tab bar (c) filter buttons
17. 17.🧭 Which part of navigation hides extra links? (a) a menu button (b) the back button (c) a tab bar
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) big touch targets
19. 19.✏️ Why draw a wireframe before coding? (a) it adds colours (b) changes are quick (c) it runs the app (d) it saves data
20. 20.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
21. 21.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Body text: 11 px
    Hint: 10 px
    Footer: 10 px
    Menu: 16 px
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Results → Address → Cart → Pay
    Design B: Home → Offers → Confirm
24. 24.True or false: the theme colours is about UI (the look). (a) False (b) True
25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Help page”
    3. tap Back
    Which screen are you on now? (a) Lessons (b) Help page (c) Edit photo (d) Quiz
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. open “Edit photo”
    4. open “Score card”
    5. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
27. 27.Which of these is true of a menu button? (a) hides extra links (b) goes to the last screen (c) switches main sections (d) sits at the bottom
28. 28.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
29. 29.Which of these is about UX (the experience)? (a) the screen layout (b) how many taps it takes (c) the button colours (d) the theme colours
30. 30.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ list of items ]
    [ search box ]
    [ big picture ]
    [ tab bar ] (a) big picture (b) search box (c) tab bar
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Title: 11 px
    Footer: 20 px
    Label: 12 px
32. 32.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Score card”
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
34. 34.True or false: a wireframe is a quick sketch. (a) True (b) False
35. 35.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
36. 36.Which of these is true of the back button? (a) undoes one move (b) shows 3 to 5 icons (c) switches main sections (d) opens a list of pages
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Confirm → Pens
    Design B: Home → Menu → Results → Pay → Search
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Match report”
    3. tap Back
    4. tap the Settings tab
    5. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
39. 39.Which of these is true of a tab bar? (a) goes to the last screen (b) undoes one move (c) switches main sections (d) hides extra links
40. 40.True or false: how many taps it takes is about UI (the look). (a) False (b) True

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