App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 764 · 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: buttons are at least 48 px tall. The Send button is 44 px tall. How many px taller must it be?
2. 2.True or false: a wireframe uses the final pictures. (a) True (b) False
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Match report”
   2. open “Match report”
   3. open “Help page”
   4. open “Match report”
   How many times must you tap Back to reach the main screen of this tab?
4. 4.🔘 Our rule: buttons are at least 48 px tall. The Save button is 32 px tall. How many px taller must it be?
5. 5.🔢 In a sign-up flow, what comes right after “type name and email”? (a) see the home screen (b) enter the code sent (c) open the app (d) make a password
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Cancel button: 48 px tall
   Start button: 64 px tall
   Back button: 24 px tall (a) Cancel (b) Start (c) Back
7. 7.True or false: a shared to-do list fits saving in the cloud. (a) True (b) False
8. 8.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
9. 9.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
10. 10.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) write a caption (b) take the photo
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Hint: 14 px
    Menu: 24 px (a) Menu (b) Hint (c) Body text
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Map”
    3. open “Video”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
13. 13.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) strong colour contrast (d) icons with no labels
15. 15.🌗 Is white on black easy or hard to read on a button? (a) easy to read (b) hard to read
16. 16.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
17. 17.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
18. 18.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ filter buttons ]
    [ search box ]
    [ menu icon ]
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 64 px tall
    Save button: 48 px tall
    Send button: 28 px tall (a) Save (b) Help (c) Send
20. 20.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
21. 21.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 10 to 12 (d) 20
22. 22.✏️ What is a wireframe? (a) a charging cable (b) a type of password (c) a simple screen sketch (d) the finished app
23. 23.🔢 In a photo-post flow, what comes right after “take the photo”? (a) write a caption (b) add a filter (c) open the camera screen (d) post the photo
24. 24.True or false: the icon shapes is about UI (the look). (a) True (b) False
25. 25.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Art", "Music", "Sports"];
    show(notes[1]); (a) Maths (b) Sports (c) Music (d) Art
26. 26.🔍 Which is the odd one out? (a) how many taps it takes (b) whether users get lost (c) how fast a task is done (d) the icon shapes
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Offers → Results → Pay → Menu → Cart → Confirm
    Design B: Home → Cart → Offers → Pens → Shop → Search
28. 28.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to add more taps (c) so each step is clear (d) to skip testing
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Footer: 20 px
    Caption: 10 px (a) Caption (b) Title (c) Footer
30. 30.Which of these fits saving in the cloud? (a) a draft you are typing (b) a shared to-do list (c) the sound on/off setting (d) your last game level
31. 31.🎨 Is this about UI or UX: how many taps it takes? (a) UX (b) UI
32. 32.🔀 In a good flow, each screen should lead to ___. (a) a dead end (b) the same screen (c) a clear next step (d) a random page
33. 33.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ search box ]
    [ big picture ]
    [ list of items ] (a) list of items (b) filter buttons (c) big picture (d) search box
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Search tab
    3. open “Map”
    Which screen are you on now? (a) Home (b) Search (c) Help page (d) Map
35. 35.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ Add button ]
    [ Save button ]
    [ search box ]
    [ tab bar ]
    [ filter buttons ]
    [ top bar ] (a) filter buttons (b) search box (c) tab bar (d) Add button
36. 36.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ title text ]
    [ top bar ]
    [ menu icon ]
    [ Add button ] (a) title text (b) Add button (c) top bar (d) menu icon
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
38. 38.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) colour as the only clue (d) icons with no labels
40. 40.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ title text ]
    [ top bar ]
    [ list of items ]
    [ big picture ] (a) top bar (b) title text (c) big picture (d) list of items

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