App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 38 · 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.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ title text ]
   [ big picture ]
   [ tab bar ]
   [ filter buttons ]
   [ Add button ] (a) title text (b) filter buttons (c) big picture (d) Add button
2. 2.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Cart → Results
   Design B: Home → Menu → Results → Offers → Item
3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Score card”
   2. tap Back
   3. tap the Quiz tab
   4. open “Badges”
   5. open “Video”
   How many times must you tap Back to reach the main screen of this tab?
4. 4.Which of these is true of the back button? (a) hides extra links (b) goes to the last screen (c) sits at the bottom (d) switches main sections
5. 5.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) dark blue on white (d) yellow on white
6. 6.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Help button: 56 px tall
   Save button: 52 px tall
   Done button: 48 px tall
7. 7.True or false: a wireframe is a quick sketch. (a) False (b) True
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
9. 9.🖼️ In this wireframe (top to bottom), what is right below the list of items?
   [ menu icon ]
   [ filter buttons ]
   [ list of items ]
   [ top bar ]
   [ Add button ]
   [ title text ] (a) filter buttons (b) Add button (c) top bar (d) title text
10. 10.Which of these is true of a menu button? (a) hides extra links (b) goes to the last screen (c) undoes one move (d) shows 3 to 5 icons
11. 11.True or false: a draft you are typing fits saving in the cloud. (a) False (b) True
12. 12.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
13. 13.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ big picture ]
    [ filter buttons ]
    [ top bar ] (a) filter buttons (b) top bar (c) big picture (d) list of items
14. 14.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 60 px tall
    Start button: 64 px tall
    Done button: 24 px tall (a) Start (b) Done (c) Send
15. 15.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these is true of a menu button? (a) switches main sections (b) opens a list of pages (c) shows 3 to 5 icons (d) goes to the last screen
17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Feed tab
    3. open “Video”
    4. tap the Settings tab
    Which screen are you on now? (a) Help page (b) Feed (c) Video (d) Settings
18. 18.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
19. 19.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) post the photo (c) take the photo (d) open the camera screen
20. 20.🔍 Which is the odd one out? (a) how many taps it takes (b) the screen layout (c) the theme colours (d) the icon shapes
21. 21.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Help page”
    Which screen are you on now? (a) Score card (b) Quiz (c) Help page (d) Lessons
22. 22.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
23. 23.🔍 Which is the odd one out? (a) the screen layout (b) the font size (c) how users feel after (d) the theme colours
24. 24.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
25. 25.🔢 In a photo-post flow, which comes first: “write a caption” or “add a filter”? (a) write a caption (b) add a filter
26. 26.🔍 Which is the odd one out? (a) the font size (b) the button colours (c) the screen layout (d) how easy sign-up is
27. 27.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
28. 28.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Shop → Confirm → Size
    Design B: Home → Results → Pay → Confirm → Pens → Size → Item (a) Design B (b) Design A
29. 29.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
30. 30.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ filter buttons ]
    [ top bar ]
    [ big picture ]
    [ list of items ]
    [ tab bar ]
    [ title text ] (a) title text (b) top bar (c) big picture (d) list of items
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) labels on every icon
32. 32.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
33. 33.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ tab bar ]
    [ top bar ]
    [ search box ]
34. 34.Which of these is true of a final design? (a) is a quick sketch (b) looks like the real app (c) shows where things go (d) uses plain grey boxes
35. 35.✏️ What is a wireframe? (a) a simple screen sketch (b) the finished app (c) a charging cable (d) a type of password
36. 36.True or false: how fast a task is done is about UX (the experience). (a) False (b) True
37. 37.💾 pop() takes off the last item. What does this code show?
    let songs = ["Stars", "Monsoon", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Ocean (b) Stars (c) Monsoon
38. 38.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Search → Pay → Menu → Offers
    Design B: Home → Offers → Pens
39. 39.Which of these is about UI (the look)? (a) how users feel after (b) how many taps it takes (c) how easy sign-up is (d) the icon shapes
40. 40.🎨 Who should you test the UX with? (a) the app icon (b) only yourself (c) nobody (d) real users

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students